Joined: Feb 2005
no denying the coolfactor but for the FAST kit being speed density it really works great. the expense with a conversion to mass flow on a 351C is the wiring and computer programming.I have heard people say the 5.0 gt A9L is plug and play but I believe it may not be that simple. If the IAC(idle air control) sees that much more air go by it may try to close and then reopen to prevent a shut down resulting in surges from 200 to 1400 rpm, Ive seen 5.0' s do this with a bad iac motor. the RJM harness is 575 and the computer 275, then 29lb injectors, 75-90mm throttle body, tps, iac, map, temp probes x 2, rails, regulator, tfi dist, a Cleveland manifold with injector bungs(that is hard to find- really) you just ran past 2K. my massflo kit was 3200,
I think the fast kit might actually be your best value and its all new parts and support and warranty. by the time i ran all my lines in 6N SS hoses i was nearly at 4K - no kidding.