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Old 08-15-2018, 09:35 AM   #21
Charlie ny
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

Grn monst 48 has a good point........I'm not sure the Blaster coil is good for this application. NAPA coil IC 7 6v, IC 14 12v. Both internal resistor. Be sure polarity is correct
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Old 08-15-2018, 10:11 AM   #22
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

Whatever you do, the most important thing is to go at it systematically. I am just suggesting eliminating fuel system problems first, since to me, they seem the most likely (changing the power valve seemed to help). Then move on to ignition. The worst thing to do is to jump around randomly changing out parts. There are a lot of experienced knowledgeable people on this forum, and if their consensus is to start with the ignition, well, that's where to start.
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Old 08-15-2018, 10:32 PM   #23
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

thanks guys. I am in Dallas.
I have a vacuum line from the back of the carb to the vac advance. new vac advance from macs was installed to see if this was the problem. it wasnt.

carb rebuild could be it. Ive rebuilt lots of carbs from holleys to quadrajets and have been successful. this little guy could be kicking my butt.

the tank is clean and the lines are new. only the pump and regulator are old. they seemed to work so I kept them. could be the issue. I had a hell of a time getting the mech fuel pump to work when i was a teenager so I automatically went electric. i plugged the pump shaft hole in the block when i rebuilt it. a few books told me to do that. so going back to a mech pump will be a pain but doable.

I tried the choke and it didnt help so ruled out the mix. fuel cap is quite loose so it vents fine.

the flamethrower coil from speedway has an internal resistor. cant remember the ohms but will double check. Ill send photos when I figure out how. the "insert image" icon only wants an url. looking for the instructions.
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Old 08-15-2018, 10:45 PM   #24
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

Why do you have a flame thrower coil. They are for electronic distributors? If you don't have a mallory, then ditch it.


See skip for coil. or you have a 8ba so you can go with a normal round coil and a bubba mechanical dizzy.


If your 12v get a bosch and a bubba dizzy.
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Old 08-15-2018, 10:45 PM   #25
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

photos, figured it out.

Holley 94? did I get it right this time tubman?
Attached Images
File Type: jpg carb photo 1.jpg (49.6 KB, 62 views)
File Type: jpg carb photo 2.jpg (47.8 KB, 57 views)
File Type: jpg carb photo 3.jpg (51.8 KB, 61 views)
File Type: jpg old blue photo.jpg (50.8 KB, 58 views)
File Type: jpg old blue in parts.jpg (71.8 KB, 59 views)
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Old 08-15-2018, 10:56 PM   #26
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

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thanks Tinker. I needed a new coil and wanted one with more fire. I read up that it would be fine but there are lots of opinions. any suggestion on type and brand?
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Old 08-15-2018, 11:01 PM   #27
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

Thanks Charlie NY. the old coil was a napa. I am 12v negative ground now. could the flamethrower coil cause the issues I am having?
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Old 08-15-2018, 11:02 PM   #28
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

Flame thowers are for electronic ignition. Just using the wrong plug wire will f' you ignition fire.
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Old 08-15-2018, 11:04 PM   #29
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

Give bubba a call. He'll straightening you out on ignitions. It's a good start. You're not stock anyways so junk that vacuum advance dizzy.

http://www.bubbasignition.com/49-53.html
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Old 08-15-2018, 11:05 PM   #30
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

Hi im looking to for a buick straight 8 , my phone is 804 506 1332 from 34 to 48 no more please i dont know how create a new post , im working in a 1933 indicar replica , baquet also i will need wire wheels , like indy style , no ford a or ford t .. Maybe a bufalo but i would like a 22 '' knok off .. Need front axle too.... If someone have parts please thanks .. 804 506 1332
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Old 08-15-2018, 11:09 PM   #31
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

another point well taken. I do have the internally resisted flamethrower and bypassed the external resistor so I am not double resistoring. not sure that is a word. when I was a teen I had no resistor and it ran okay but my auto shop teacher took a resistor off an old datsun and put it on and wow, it worked much better. that was a good lesson for a 17 year old.
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Old 08-15-2018, 11:14 PM   #32
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

How long did you have the car? If it's 6vs and a dizzy for 6v, straight 6v to the dizzy will make it start quick. but it will burn points quicker too over 4v.


If you have a regular old flathead will HEI ignition be that useful really? Matched components. It's a system.


a Bosch coil would be my suggestion and go mechanical advance. Keep it simple-ish.


call bubba.

Last edited by Tinker; 08-15-2018 at 11:20 PM.
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Old 08-15-2018, 11:22 PM   #33
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

will do, checked out bubbas site, fantastic. thanks
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Old 08-15-2018, 11:27 PM   #34
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

Ive had the truck for 38 years but now in rebuild 2.0. after sitting in storage for half of those years. the system is 12v neg ground now. it was 12v pos ground when I bought it as a teen. same distributor since then but I have replaced the points, condenser for 12v and vac advance. im a keep it simple guy and agree. any model number on the bosch coil or where to look for it or just check with bubba.
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Old 08-15-2018, 11:27 PM   #35
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

It's a good start. Then you can run any carb or duals after. See CharlieNY or others for carbs.


Don't try to throw parts at it. But it's up to you. You arn't going to be able to just replace the coil and know if the vacuum advance is working right. It will take more time.


Bosch coil is for vw bugs. Here ya go......



https://www.fordbarn.com/forum/showt...sch+coil+bubba




*** I'll add, to not add more money to things (although a mech advance diz from bubba is around $150) If you have or may have a working carburetor and vacuum setup. You might be fine. but not with that coil. Buddy had a 50s business coupe that wouldn't do a burn out, after a mech advanced dizzy he did, Your call! Best of luck!!****


I'm not saying this is it... it's a system that's so simple its complex. Get one done.

Last edited by Tinker; 08-15-2018 at 11:51 PM.
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Old 08-15-2018, 11:54 PM   #36
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

There´s nothing wrog with the flamethrower coils.
Just use the 3 ohm version with 12v system.
And yes i´ve run several first hand both 6v and 12v with no issues.
So it gets fuel.
Check the vacuum canister new or not so that it is ok and moves.
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Old 08-15-2018, 11:58 PM   #37
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

Quote:
Originally Posted by flatheadmurre View Post
There´s nothing wrog with the flamethrower coils.
Just use the 3 ohm version with 12v system.
And yes i´ve run several first hand both 6v and 12v with no issues.
So it gets fuel.
Check the vacuum canister new or not so that it is ok and moves.

You're adding volts to a system that doesn't need it. if it does any good if your timing is sh!t.


Just my opinion.
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Old 08-16-2018, 12:05 AM   #38
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

What am i missing here...he´s already on 12v and we are trying to solve the issue..
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Old 08-16-2018, 12:09 AM   #39
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

It's a valid idea. I might start fresh.

Last edited by Tinker; 08-16-2018 at 12:29 AM.
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Old 08-16-2018, 12:32 AM   #40
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Default Re: 50 flatty idles well revs okay, but will not drive down the road.

Hey, welcome to the ‘Barn. Definitely jumped in with both feet. Lol. Hopefully will get it all straightened out and you can enjoy your peekup. Pulled a plug or two to check color? God luck and have fun. Mike
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