[andy669]

Yes, you read the timing marks at the flat spot on the pointer, not the circle. If your engine builder didnt know that, I'm afraid of what else he didnt know.

The fact is, from a performance standpoint, your combo is a little mis-matched. But since you built this to still be emissions legal, your 393 probably wont run like most everybody elses. All in all, I think you are doing pretty good. The only reason I suggested verifying the timing, is that its the easiest thing to check and the best place to start.

There could be several things wrong with your times. It could be as simple as changing drivers. How many times have you gone down the 1/4? Are you sure you ran the car out past the last set of cones? Its a dumb question I know, but lots of people get confused on their first few passes.

Did you ever tell is what cam is in it? Or did I miss that.

Andy