This is just for the street right now. Car shows and stuff. I'm building a second block with 8.5-1 slugs and chromoly rods. May go with 4 bolt mains. This one is an .060" over 341 at 352 cubes. 10-1 Venolias with Hilborns, T3/T4 Garrets, 282 X .475" Contrerras roller, Megasquirt 2-V3 system, 727...