Its a 87 22re Block, with a factory crank, and rods(with ARP studs and bronze bushings) and main studs. The Pistons are a StopTech hypereutectic with about 8.5:1 CR. So I really am limited to 5lbs of boost. RV head with oversided valves with toyota OEM gasket. LCE efi performer cam with head studs. And LCE header. The one change I wish I had made was a double row chain. But oh well. I had looked at the Megasquirt before and the SDS. The nice thing about the SDS is I can go to a coil pack and really fine tune things. But I am hoping The factory setup will work...