TPI or even TBI. Think about it you could get a dual 4 tbi off somethin like a 82-86 firebird/camaro for about $250 for everything. That's as much as a decent carb maybe a little more once you do a couple upgrades but well worth it IMHO.
Oh yeah I was quoted that $250 for a dual 4 tbi from a junkyard off a firebird. It was still on the car too. TPI costs about $400-500 for complete set-up, just make sure you get the wiring, fuel pump/regulator, computer and sensors, air filter assembly, etc. Maybe even the serpentine pulleys for an extra $50-100 then you'd just need a quality water pump (about $100) if it's reverse flow don't buy china made crap though.