Here's the link. A guy installed headers and only picked up 5 hp on a chassis dyno. Them pulled the stock air filter and picked an additional 17 hp.
http://www.challengertalk.com/forums...-results-9706/
It also showed the engine quit falling off at 4800 rpm. This just supports that the few trivial things I did helped, while the 13.40's TaylorSF ran were bone stock.
I am shocked so many people get crazy over these topics when data is supplied. I spend alot of time at the track and see cars running times all over. I usually assume that most of the cars in the street car lanes are inexperianced drivers and just having a good time. I can tell you this much...on bracket race days, I dont see too many street racers. Just goes to show how confident they are in their skills.
But like I said....non of this matter to me now. I have already started the changes and will be ready for april testing. I will be more than happy to report my progress.