Pro Flo 4 Timing

If you end up going this route please take pictures and post here. I have had this issue and even discussed with Edelbrock tech support a couple years ago but have not got around to messing with the distributor. In my case anything over 28* seems to cause issues. We should be able to run mid 30’s with some vacuum advance thrown in without issue.

BAC, thanks for your efforts and posting your fix.

I will. I've got less than 50 miles of time on the system, breaking in a new motor. But I have some issues start/cold idle that requires throttle. I've been leaning towards a bad TPS, it floats around from 0-2%, and anything above 1% disables the idle speed motor.

Peter mentioned that his idle/start issues cleared up with less initial timing, so I've told another possible cause to investigate.

I'm going to try a new TPS and redo the idle tuning. If I still have an issue I'll dig deeper.