Vacuum Advance Causing Misfire at williedcarro blog

Vacuum Advance Causing Misfire. The truck had been running fine and then. testing the vacuum advance.

Quick Tech Why You Still Need Vacuum Advance
from www.motortrend.com

when my vacuum advance is hooked up the motor will run very rough, stumble, and misfire. regardless of the vacuum advance can i use, the engine has what sounds like a misfire at part throttle cruise. When i disconnect the vacuum advance, the misfire goes away.

Quick Tech Why You Still Need Vacuum Advance

Vacuum Advance Causing Misfire regardless of the vacuum advance can i use, the engine has what sounds like a misfire at part throttle cruise. that would make for an engine that was horribly inefficient and made terrible power. As soon as i roll into the throttle, it smooths out as long as i’m accelerating so i assume the carb is moving to the main metering circuit. the problem arises when i hook up the vacuum advance.