the a Cobra intake, F-cam, and good heads i would expect to see 285-290rwhp....there are better choices out there in the power department than the Cobra intake, and F-cam.....
....1/4 times are hard to guess...Paul(Killercanary) runs 12.3's in his very with 293rwhp but he is an AMAZING driver.....400rwhp should be good for 11's easy if you can drive....but its going to be an amazing feat as tmoss said to see that NA on a 302....even flywheel hp 400 is iffy, because thats like 340rwhp....and the most power ive seen put down recently is GTJake with around 325rwhp(i know thats close to his number) and he is rockin AFR's a ported Edelbrock manifold, and an FTI cam and his intake and cam are better than an Fcam, and a Cobra intake....
Anthony
Anthony