Derek, I assumed he was back to using the 340 crank because of piston choice? The only clearance issues Chris had was the first two rods hit the shallow front of the oil pan and last two hit the windage tray. Dimpled the pan and put washers between the windage tray. Plenty of cam clearance with the Crower Stage 3 cam. I talked to him today and he said he was going to Dyno tune this spring with no air filter and open headers to see what he could get compared to the air and exhaust restriction.