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Ol' Ron · 03-27-2013, 03:36 PM

Now that we have that cleared up, we can take advantage of the vacuum advance, by leaning the main jets. A lean mixture requires a longer advance. When you get into the throttle the PV will richen the mixture, the timing will fall back and you'll have all the power you need, Richard uses an AF meter that shows fuel ratios of 15.5 to 16:1 in cruise and the mileage of 20Plus in a hat 276/ L-100 cam is no fluk , I waz there and drove it. 4.11 gears and a T-5 makes it come off the line with no trouble at all.
I was impressed. Tuning can be fun.

03-27-2013, 03:36 PM	#17
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,855	Re: Bubba's chevy conversion dist. Now that we have that cleared up, we can take advantage of the vacuum advance, by leaning the main jets. A lean mixture requires a longer advance. When you get into the throttle the PV will richen the mixture, the timing will fall back and you'll have all the power you need, Richard uses an AF meter that shows fuel ratios of 15.5 to 16:1 in cruise and the mileage of 20Plus in a hat 276/ L-100 cam is no fluk , I waz there and drove it. 4.11 gears and a T-5 makes it come off the line with no trouble at all. I was impressed. Tuning can be fun.