I'm FINALLY going to do my cam swap soon and I'm thinking...will I be OK using the 43 year old intake bolts that are in the engine? or should I investigate getting new hardware? If so, who has them? Also, this is my first solid lifter cam swap. When I set my cold valvetrain clearances, where should I do it...where the lifter meets the cam? If not then how am I going to set a clearance on a cupped pushrod mating to a rocker arm tip that fits in the cup? And then how should I do the hot clearance? Thanks Bill M 65 Coronet 500 'vert