HP limit with 1-5/8 headers

Hey 66dartman, don't dispair. Read what this article has to say about stepped headers vs. headers that are too large or too small. I'm not saying I agree with everything it says... I'm not sure I even understand all of it. But it does make you scratch your head and think about it.

My bet is that any off the shelf header has the potential to perform better on one engine than it does on another. To put that another way, just because a TTI step header works wonders on one guy's 7500rpm screamin' 340 does not mean that same header will perform as good on another guys 416 stoker with a 5500rpm readline. Just my opinion, but if you really want to get the absolute most out of a set of headers, they must be custom designed for that particular engine/chassis combination.