Related Photo Galleries
Paul Svinicki graphed our runs on the Dynojet computer. We tested three combinations--carbureted, EFI with 30-pound injectors, and EFI with 36-pound injectors (see graphs). The 750-cfm carb made 308-peak horsepower , while the Commander 950 with the 30-pound injectors and 50 psi of fuel pressure made a touch less at 306. Then we swapped in the 36-pound squirters, recalibrated the Commander 950's fuel maps, and bumped fuel pressure back to 42 psi (we left timing at 42 degrees total for all three runs). It took just three pulls to generate 323 rear-wheel horsepower, beating the carb by a solid 15 hp. The only thing we couldn't do a fair comparison on was torque. Our 3,500-stall B&M Holeshot converter was biased to the carburetor's top-end tuning, and totally wrong for the EFI's natural low and midrange powerband--it flashed at 4,700 rpm on our last run with the big injectors. With a 2,000-stall converter, the Commander 950 would trounce the carburetor's peak torque figures.