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#1
09-05-2021, 03:55 AM
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Agree. I would guess that the misfire is caused by too much vacuum advance under light throttle. Would suspect that slowly bringing the engine revs up in neutral probably will cause the same misfire.
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Mick Batson 1967 original owner Tyro Blue/black top 4-speed HO GTO with all the original parts stored safely away -- 1965 Catalina Safari Wagon. |
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#2
09-05-2021, 06:21 AM
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I am working on fine tuning a pro flo 4 as well. What are your settings for cruise and accel AFR targets? What are your timing settings for idle spark, advance start, total spark and vacuum advance? What is your IAC % at idle when fully warmed up?
So far, I am very impressed at the drivability of the system and have found that fine tuning my spark tables has paid off the most in gettting a very smooth and effortless accelleration at mild throttle. My only issue is a surge at 65-70mph that equates to 2700-3000rpm in my car. Pretty confident with some more seat time I will get that ironed out too. |
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