I have a 700-800 dollar header on my smallblock( Doug’s) they are costing me a bunch of power. Nice headers, but not made for very healthy power levels.
The TTI’s ( 1 7/8) will support more power, but they are close to 1100 and not exactly optimal…IE..I would rather run the Headman 1 7/8 race header( will make substantially more power) but require hacking your inner fenders.
So most anything currently available has some warts. I know, have looked at and considered every one of them