Another header ? for smallblock

I put the standard TTI headers on the Indy/ex-RHS heads and they work fine. There is a very slight overlap (port vs header) and the gasket may have a thin contact area in a couple of places, but I haven't had any problems. It's been a while so I don't recall where the "spots" were, but I believe it was near the floor. Most flow is at the roof.

You probably don't need as much exhaust duration because the exhaust flows so well and the step headers can help scavanging also! It wouldn't hurt to try some different jetting with the new headers. I also ran a little faster with jetting 2 #'s different between the deep plenum half (richer) vs the shallow side (leaner) with a Weiand Stealth and 4-hole tapered spacer. Jet for MPH and pump cams and squirters for 60' - if it hooks consistently.