I got one of those HEI distributors on a stock 350 chevy motor. Its got that "vacuum advance" deal on it. I know i need to take it off but how? or what do i replace it with? i have seen on Summit.com the vacuum lock outs but it doesnt specifically say for MSD, just for "Proform GM HEI".
Just a little confused. Does running the motor with it on there and not hooked up to any vacuum make it run different or badly? Had an issue with the motor lean popping and was kinda wondering if that could be an issue..
Any advise or thought would be appreciated.