FWIW the smallblock in the heads up car made over 1000 with a set of 1 7/8" 20 long primary headers on the dyno. Headers on the car are 1 7/8 to 2 to 2 /18". Car ran 8.0's last year at 2800.

"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"