My 360 has a Howards flat tappet with 1.6 rockers, Currently I have a Crane dual spring, 150lbs on the seat and around 400 open. My camshaft is a little bigger though, from memory it was around 0.690" valve lift and 266-276 @ 0.050"
It makes peak power at 6900 RPM, turns to over 7000
I actually can't remember. They were Comp lifters, back when they were decent.
It runs a big aluminium Hamburger oilpan and a standard volume oil pump. Other than deburring everything, a pick up directly over the gerotor, it's a standard oiling system. I've personally never ran a high volume pump in a LA engine.
