Just an update I blew the head gasket on my 462 in December, no big deal that engine was never intended for boost and had factory head bolts and a crappy Felpro head gasket. It made 10 lbs of boost and no lag whatsoever, ungodly amounts of power. Im building a 400 with all the right parts. Commetic head gaskets, head studs, 9:1 compression, good rods. Also upgrading the turbo 400 with 300m input shaft and new front drum and a torque converter built for this combination. The rear end is a Dana 60 with 3,54 gears and 35 spline axles. Unlimited power from this point on. Also switched to Megasquirt ultimate for the EFI
