× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Vacuum pump for power brakes
Posted to R.P.M. Forum on 5/17/2018

I just finished a small block chevy with a comp cam "big mutha thumper". very choppy/racy idle...

Cylinder pressure/vacuum is terrible at idle. The cure was to curve the distributor advance so that it idled at 26deg. Very simple since it has MSD. Mech advanc... Login to read more.