Hello, I need some info on ring gap,roller rockers, and oil pan requirements on a Chevy 385 stroker engine I'm building. I'm using Speed Pro hypereautic pistons, .040. Do I have to file fit the rings?, the ring gap is .019-.020. I've heard the 2nd ring should be a larger gap than the top? Also should I purchase a high perf.oil pan with windage tray, baffles and crank scraper? Will a standard 327/350 stock oil pan fit a stroker with 5.7in rods? One other ?, should I install roller rockers with a 1.6 ratio or 1.5, my cam is an extreme energy, .469 int/.480 exh lift. i really do not want to purchase a new set of push rods, since I have a set of hardened std size,if I go with rollers, it might change the length required? My heads are 64cc, Dart 200cc intake runners, compression around 9.5-9.7max.thanks!