I am running a mpfi from an 88xt , now with turbo. I set base timing at 15 degrees and run 94 octane. I have it in a 90 loyal 4w-4sat running stock boost.
I tried it in a 85 wagon 4smt with 12 lbs boost ,it ate a head, ported itself around the exhaust seat. So far 12k miles no probs. Daily driver 64 miles rt to work.