[jhaynie]

I have a Holley Commander 950 FI system on my 351W. I've had the car for about 9 months and until recently, like you, haven't been able to spend much time on it (built a house). I recently discovered that letting the car warm up well before getting on the road makes a huge difference in the performance. If I don't let it warm up, the system has a stumble from 3000-3500 rpm all day long. If I let it warm up, the stumble isn't noticable. Doesn't make much sense, but this is an extremely complicated system (in my eyes anyway). I'm going to keep trying, hate to throw away a $1500 + system this early in the game.