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Originally Posted by Mark Brye
I think Ford uses the Comp Cam XE282HR which is 566/576 232/240 if memory serves me correctly. I was thinking about using more cam also but not sure how big I can go with just the 185 heads
Oh, it also has a Tremec TKO600 for a tranny
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You have plenty cam. Increasing your duration will only shift your power band to the right (read "up") in terms of RPMs. You should have way more RWHP for a TKO. I estimate that the TKO eats at most 15% of your power so your fly wheel hp is about 355. My 351W makes 316 rwhp behind a C6 auto tranny, which eats about 22% of your power. This gives me about 405 hp. You should be making not less than 430 hp (maybe more with those heads, prolly 450 hp) with that engine, which would be 365 hp or more at the wheels. Something is wrong. Could be timing, could be carb, could be something else.