problem with the poly you need headers because of the bad factory exhaust manifolds and then trying to find a 4 barrel intake. what engine would be an easy swap 318 LA-340-360 ? will they bolt up to the trans ?
flat hyd with 1.6 roller tip rockers. best shift point about 5300-5500 rpms. The cam has 488 lift intake and exhaust with 1.5 rockers with my 1.6 rockers brings it to 520 lift
comp 911-16 are not really double springs. they have a damper just like the factory put in their higher performance engines. 911 should be all you need unless you're running a solid roller cam.