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Ol' Ron · 03-27-2013, 09:58 AM

The vac comes from ithe intake, not the carb. Disconnect the vac and plug it. Bring the rpm up to 2000 RPM set timing to 20 degs. re connect the vac read timing, should be 26-28. Let engine idle, remove vac plug it, read advance should be 2-4. Add vac should be 10-12. Now drive the car,it should start easy and idle nice and give great mileage. You can adjust the vac and turn the dist to make minor adjustments. If dist has more than 20 degs mach send it back to bubba.

03-27-2013, 09:58 AM	#3
Ol' Ron Senior Member Join Date: May 2010 Location: Chester Vt Posts: 8,860	Re: Bubba's chevy conversion dist. The vac comes from ithe intake, not the carb. Disconnect the vac and plug it. Bring the rpm up to 2000 RPM set timing to 20 degs. re connect the vac read timing, should be 26-28. Let engine idle, remove vac plug it, read advance should be 2-4. Add vac should be 10-12. Now drive the car,it should start easy and idle nice and give great mileage. You can adjust the vac and turn the dist to make minor adjustments. If dist has more than 20 degs mach send it back to bubba.