Can't get it to idle right!
Ok I did some checking today. I went ahead and pulled the distributor to see if it might have a broken advance spring or something, but all looked good. the heavy spring has been replaced with a aftermarket light one though. I tried to set the initial timing but I still was having the varying RPM issue. It's not so much as surging, but revs up on it's own to about 2k after a about 10 seconds sitting at idle and it stays there. If I back so much as a 1/2 turn on the throttle screw, it stalls! I did check the vacuum and it reads a solid 12 at 900 rpm, and 22 at higher rpm's. I even spray starter fluid around the intake and the base of the carb with no variances?
:banghead: