Another 416 Stroker Build-Pic Heavy

Interested to see what your header change does. When I switched from 1-5/8 to TTI stepped headers on a 600 hp engine we gained an average of 1 hp from 3,000-6,000 rpm and after 6,000 the power went up......seemed like 10 hp if I remember correctly.

Your adventure is keeping me smiling. I like it.

I'm thinking the tube size isn't going to make a noticeable difference at this output level, in fact I bet it loses TQ just about everywhere. Glad you are smiling Jim. I came in today and lashed the valves .002" tighter and looked at how much fuel the rear bowl was moving and decided 82's and a plugged P.V. was too much so in went a pair of 78's. I also set timing back @ 35 from 37 and now I'm going backwards with about a 7 hp loss. I know I know 3 changes at once.... Waiting for the headers at the moment. Checked the S.G. of the fuel and it came in at .712. I think its going to be one of those days. J.Rob

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