[klayfish]

Thanks for all the feeback, guys.

The motor is not stroked, but it is bored .040 over. I would call it "mildly" worked over. It's not extreme, but it has a number of goodies in it.

I only have one fuel pump, and it is located in the tank, on the right side. That would explain some of the problems I had in the long sweeping superspeedway Turn 3. That is the Winston Cup track, almost no banking and speed around 100mph. The way we were running, it was a right turn, so all the fuel went to the left side. Here's a quick nutshell summary of how it went.
Run session one..car stumbled really bad. It was hard to drive, as it just wouldn't go at ALL under any lateral g load. Raised the float level up.
Run session two..the car actually ran much, much better. It still stumbled on occassion, but about 85% better than the first session.
Run session three..ran good for about two laps, then really started to misfire. Noticed I was well under 1/2 tank of gas. Went and filled the tank.
Run session four...with a full tank and raised primary float...the car ran quite well again. It did stumble a tiny bit. It is most noticable when going through a tight turn then having to get quickly back on the gas. It would tend to cough and pop, then take off like a shot. It ran well for the most part until, for reasons still totally unknown, the pin in the distributor drive gear (on a 2 day old distributor) sheered off and ended my day.

My mechanic and I debated between the 650 carb and 750 carb when we put this motor in (the day before my Pocono run). We went with 750, because we felt the 650 would choke it at higher RPMs. We suspected the problem is with the float type, but wanted to get opinions from other racers who have had similar experiences. The car runs fine on the street, we even got the initial throttle tip in hiccup almost completely worked out of it. Just on the track, it is stumbling, and I go back this Saturday.

Steve