strtracer442
New Member
If you use a stock h/c/i the 331 or 347 are a waste of money. the stock hci barely feeds the 5.0. You have to step up the HCI to see the benifit of more cubes, more cubes needs more flow. My CHP 347 dyno'd at 387 HP, with 14 degree's timing,24lb injectors,42psi fuel, TW track heat heads,ported cobra intake and a 65mm TB, 1 3/4 long tubes. We're gonna chassis dyno and tune after its installed to tweak it some more. Oh yea, 10:1 compression, cant remember the cam specs, but lift is in the .580 range with 1.7 rockers. Idle is noticeable at 950rpm, I'll see if I can find the dyno sheet and post more specific #'s
Stock blocks are good to about 500-550hp depending on how well you prep the bottom end(studs and main girdle)
Stock blocks are good to about 500-550hp depending on how well you prep the bottom end(studs and main girdle)