Seat of the pants dyno and plug readings.Are you planning to do a lab acceleration test or dyno to compare the two. The air fuel ratios of a well tuned carb would shock most EFI fanboys.
Yeah I had that Q-jet and HEI dialed in. I think I still needed to play with the secondary jet needles a little but for everyday hauling a$$ it was running pretty damn good,passed the pass a truck right now test. I was running 270 gears with 81" of tire and several people asked if I was running 4.11's,it pulls that hard. Can't wait to get it in my 1/2 ton.