.02 in ET, no change in mph over 4 runs and 3 jet changes...

....which, at the time, seemed like a waste of time.....

However, that was before .02 would have got me a 10
second ET

But! that was with a 3" H pipe, and now I have a larger X pipe, so anymore....who the heck knows

Honestly I'm not sure I even care anymore....

I'd feel pretty dumb to say my street car would run XX.XX, after I take the exhaust off. I don't drive around on the street with the exhaust off so it doesn't matter what it runs without it.

I put some effort into fabricating my exhaust to act as really long header extensions + a crossover to improve power, rather than as a cork to make it quiet....so it would hopefully not have to come off, to do what I want it to do.

That isn't much of an answer is it