Basically ended up replicating this but NA and stock EFI. Going to use DSS K1-5001 -10cc pistons w rings, Promaxx bare CNC ported head with SI valves 4.810” -1.94”/1.60”, stock EFI rockers (maybe Scorpion 1.73) and an Erson E270321 (Hi-Flow AH) .504"/.504" 220/220 284/284 110deg cam shaft. Going to try and fit all of this under a stock EFI valve cover and tune it with EEC-IV. Sleeper EFI build
We have a 300 turbo build. We used the melling hv oil pump, and had lots of problems with way to much oil up top. Just be sure you really need the hv pump.
Just remember To make the 268 cam work well with the turbo you need a max size of 62mm inducer 58mm exducer Otherwise you'll still have low end tq issues The best option would be an HX35 or he351 infront of your current turbo so you make boost across the entire band Port fuel injection will also improve the global power band and reduce fuel consumption Just some suggestions coming from building a bunch of turbo vehicles for multiple different goals including torquey gassers What is the grind for that new cam, i can give you an idea of the tq band