Hey all. I am wondering what the RPM limits of a 390 is? The motor is a 30 over 390 with hyper pistons and arp rod and main bolts. the valvetrain is a stock hyd system that is not adjustable. The cam is 510/519 lift Rpm intake and FPA tri-y headers with 2.5" system 4spd top loader. All internals are stock. would 5000 shift point be good or should i shift sooner? Car is a land barge 64 gal.
Thanks all
Lloyd
