Ball park ET gain... 346 to 408
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My old set up was a FAST 102/PRC215/MS4. Just a little over 11 to 1 comp. I had 100mm intake tract, 1 7/8 headers, 4" single, 430s, 27" tire, and a T56. The car went 10.92 @ like 125.89 @ 1800 feet. It made 445.8 on a dyno dynamics (told 10 percent vs dj but not sure) but anyway. The new set up will retain all of supporting mods only I'm gonna have a 408 11.5-11.6 to 1 comp, PRC 247 heads, and a 251/259 cam. I know it'd be pissing in the wind guessing but roughly what should I expect to pick up with the 408 ET and trap speed wise. Everybody around here says the stock motor was possessed and I'm gonna slow down. I don't see that possible if the 408 makes more power assuming it hooks the same. What do you guys think?