1 5/8 headers

I know you’re making changes to things, but if it was just headers, How much better do you think it’d do with those headers you just bought?

wish I knew. Couple guys that have forgotten more than I know said 25-30 horse perhaps. Dwayne was one of them
not sure what that is on a time slip.
only other thing I am doing is freshening trans, and changing flash on vert( hoping I am going the right way on that)..lol
decided not to swap to 1.6 intake rockers