AEM EMS
I'm using a TT shortblock that I rebuilt. It had 10k miles on it, developed rodknock due to previous owner stupidity. Everything else was unhurt. Got a new connecting rod, ARP rod bolts, ARP main's, ACL bearings, and a good crankshaft. Pistons were coated on the skirts. I put new toyota rings in it, a brand new TT oil pump, new oem toyota head gasket, ARP head studs, aftermarket springs and titanium retainers in the head along with a valve job and new seals. I did a mild pocket port around the back of the valve seats while it was apart. Yes, I'm doing cams too.
Should be good for whatever the poor little 67 will blow. The turbo on my engine made 716 on a TT engine with aem at one point in time. That was with stock head, stock internals, stock cams and bunches of other stock stuff. Should be a big deal to pull numbers close to yours with what I've got. You running an R154?