Building a TIII Short block with FWD H-beam rods. Planning to build a high horsepower motor fed with lots of E85. Planning on doing ARP main studs with stock mains. What horsepower are the stock mains good to and when should I start looking into 4 bolt mains? Are the mains limited by HP or by RPM's? Looking to make around 500whp on the E85, that is all my new 120 lb/hr injectors should be able to handle and more than enough to make my R/T more of a handful.