If the main caps question was pertaining to my 385 series; they are Blue Thunder caps (requiring block machine work for the splayed 4-bolt mains) on 2,3,4 and stock caps on 1,5.
This decision was made after seeing 1000+hp monster truck, puller-trucks, and jet boat 385 series engines survive running stock blocks with a cap configuration like this with much longer stroke than I'm running. Apparently, the 1,5 caps are plenty strong as-is. I guess I'll find out...this is the first time I've attempted this kind of power on a 385 series.
They can be purchased thru engine systems.
www.enginesystems.com