Stroker Performance Review

And this is EXACTLY why you use a dyno.

The OP has no clue how much power he makes, so he has no way to baseline his time slip, look at the incrementals and see where he is off.

Or maybe, just maybe it’s running the MPH it should be for the power it makes.

Again, a day on the dyno and he would have something to work with. Now it’s a guess.

OP, what does the car weigh?

You need at least a 4500 converter. At least. Call PTC and talk to them.

The carb is probably ok, but you are WAAAAAAAAY off on the power valve. And your jetting looks wierd. I can’t imagine that engine getting by with a 68 main jet. If you actually have an .072 PVCR that seems very fat too.