Just finished the body work of my beloved 69 Mach 1 and am looking at either rebuilding / replacing the engine. I currently have a 351 W a Holley 650 cfm, dual exhausts, aluminum intake manifold, msd ignition but can't seem to get the horses out of it.
It's an old engine which I don't believe has ever been rebuilt. I looking to pull between 300 - 350 horses and am looking for reccomendations. Should I overhaul the old or drop in a crate engine. Any reccomendations on engine overhaulers in the So. Cal area. Looking to spend around 2500 to 3000. Many Thanks for any help here....