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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