Give me your best guess on this build, please. SBC 355, hyperutectic slugs, .275 dome. 72 or 76 cc, 1.94 n 1.5 polished chambers n ported valve throats. 462624 heads Screwins no guides COMP 284/294 n .541/.544 with 1.6 rockers. best guess on c/r is 10.5 Cast crank, balanced. Wuddua think?