622", 11.3:1, solid roller, 150psi cranking, 92 speedway premium, 1.4 per cid.

B1 heads are odd because they don't flow enough air relative to the port size (or CSA: cross section area) on a big inch combo the port is big enough to support the cid but the flow isn't there to support RPM so the engines tend to nose over early.

These King Krate combos make STUPID torque and are all done by 6500. Cam and cross sectional area very important to making torque. You want to have enough duration to make max torque before you run out of CSA to support RPM for any given CID.

Mike @MM