Depending on what fuel you run, the FI TECH unit will support 1200 HP on gas, not so on alcohol. My buddy has a 588 BB chevy that runs alcohol . The car slowed down .3 from 8.70 to 9.0 but it fires right off with the 15-1 compression and idles like a fairly stock car. If fi-teck would come out with a larger cfm body like a 1250 size I think the injection set up would run with the carbs. His thought on getting more cfm is to add another fi-tech on a dual four Holley Sniper sheet aluminum fabricated short tunnel ram. We'll see how that works in the early spring.