Alright here is the deal I just put a TSP 233/239 600/605 112 LSA cam in my WS6. I had a TR 224/224 560/563 114 LSA in it before and on a stock tune it made 393 RWHP and 385 RWTQ. Ok so I put the TSP in and on the first tune it was running a little lean (14.6 to 1) but made 403 RWHP and 361 RWTQ. Now running bottle I had to be richer so I got it retuned and it only made 376 RWHP and 360 RWTQ which I am happy with but here is what confuses me we put my stock computer (did the core exchange with PCMFORLESS) in just to make a run on that to see where the A/F was on that one. When we started it wouldn't idle on it's own but we made a dyno run on it and it made 392 RWHP and 380 RWTQ and A/F was 12.8 to 1. Now WTF how does it make more power on a stock tune?

 

That's an easy one...the "tune" is faulty. I would suggest flashing it back to stock and starting over because somewhere in your "tune" something is wrong.

 

Yep, bugs... Get an in-house dyno tune from somewhere.