How much lift is in cam. With big cams we used to run them in first with just the outer valve spring then put the inners in when warmed and cooled after 20 min running at 2000rpm..
Have you thought of a roller conversion ??? $$
Hopefully no coil bind ??
Don't be afraid to try something new. Remember, amateurs built the Ark...Professionals built the Titanic!
Tuned & maintained by "Peppertree Perfmormance". Dart block, Scat 4340 steel crank, Custom C.P pistons.Oliver rods.. Mal Wood twin plate clutch.. Twin SC61/2's,482 rwkw/ 645 rwhp..
Passengers, myocardial infarction material..