I hope some one here can help me. I do not have a lt-1, but I have a late model 4 bolt roller motor. My problem is that the motor floats the valves at around 6200-6300 rpm. The motor has 2.055 intake,1.6 exhaust, double roller springs matched for the cam, AFR Hydra-Rev kit, Comp custom grind 236 242 112 .530 .550 with 1.5, crane roller rockers,the spings have regular locks and retainers. The motor pulls very hard to this rpm and I though i should to about 6700-7000 out of thiswith the rev kit and the proper spring. Theheads have been ported and have flo #'s equal to 195 afr's. for igition Ihave mallory dis, hyfire al box
What i am wondering is what rpm other people are getting, I know you are limited with opti. I need to knoew if i should go with solid roller. What also bothers me is that my co0-workers has a late model roller motor with a bigger hyd roller with out a rev kit he just has srings for a solid lifter cam and he shifts at 6700 rpm with otu any light weight valve train.
What I am wondering is what