1-5/8” might not be ideal, but they might surprise you. I ran 1-5/8 LA headers on my W2’s and went high 9’s with 340”. I have since built a set of W2 headers and will find out if it makes a difference. I went with 1-3/4” stepped to 1-7/8” header.
who knows, lol…not gonna spend a grand to find out at this point regards headers.
Just want to see what these pick my car up…and i now know i have enough head to support 9 sec passes if i ever decided to do it( very unlikely to do that again at my age)…but the potential is there.
I never upgraded to a Dana, just bought fresh nodular case Moser 8.75 centersection last summer.
So thats the other thing, keeping it in one piece till next off season, and footbraking only..i actually went about this backwards..not a first for me..i can be mighty dumb