Fluttering tach under heavy load 3500-5000

1993SSP

Founding Member
Sep 5, 2001
1,194
0
37
Ky
My car has always had a little bit of a miss when it's first started and drove when cold at around 2-2500 rpms, this miss goes away after the engine has warmed up.

Every time I drive the car and run it under a hard pull the tach always flutters like it is misfiring between 3500 to 5000 rpms, I can't really notice a miss in the car but there is definitelty something going on, both my stock tach and the autometer tach both flutter. Anyone ever experienced this?? I have a fresh rebuilt dizzy with all new OEM parts, new cap and rotor button, also have new plugs and wires. My ignition is accel 300+. I had this problem before adding the ignition and rebuilding the dizzy.
 
I have tried EVERYTHING!! It has about drove me insane, can't really tell the miss is there except for noticing it on the tach, but it seems to be getting worse :mad: