AntiRiceRacing

Well when i bought my motor the guy gave me a free distributor. From what i can tell its missing the electronics, cap and rotor. Its this distributor: http://www.summitracing.com/parts/MAA-3755401/ except it must be a older one because the housing looks cast, not billet. I also noticed it is not vacuum advance, is there any advantage or disadvantage to running a distributor without vacuum advance on a carb'd motor? Any help is appreciated.

mjr46

yes^^^^^you won't have full advance, the mech advance is controlled via weights/springs, which typically may only deliver up to 18-25 degrees initially, heck my 85 oem carb dizzy with vac advance delivered up to 50 almost with vac advance hooked up, I set base at around 15 iirc and with just the mech advance pulled out nearly 35 total iirc, it works fine, I even bought an adjustable vac advance for it but it still was to much advance, what I really needed to do was put on some stiffer springs for the mech portion to fine tune it, but it works fine as is on my 92 conversion