1.5 Or 1.6 On J-heads??

had 1.6's on a hydralic cam one time to increase lift, stock rockers on it, it would turn 7000+ rpms, puty the 1.6's on it and it like to float the valves, tried 2 or 3 sets of lifters never fixed it they floated mid to low 6000's. on the solid lift setup i have on now the 1.6's work great, it will turn as far as you want it to, no problems, had to get a shorter pushrod for the solid in it now and the geometry came out good, good luck:happy6: