Pull the engine and get it on the dyno. With your headers, your carb, your ignition.

You are blaming the engine and you don’t have a clue how much power you really have.

You’ll get a much better converter if you give them actual power numbers.

If you think about it, the time and money you have spent so far would have paid for a day or two on a dyno.

There is a reason that all serious engine builders have a dyno or access to a dyno. They ain’t stupid.

Of course, if you have been on the dyno and jus didn’t post the numbers then all this ^^^ doesn’t matter. I’m sure I speak for many here that we’d love to see the numbers if it went across the pump already.