I found a good deal on a used Victor Jr intake and I'm considering picking it up. Here's what I have currently: Engine: 388 CID ~10.5:1 compression A Crane Solid Lifter flat tappet, Lift is .518 Intake, .536 exhaust. Duration 244 Intake, 252 Exhaust. Victor Jr 23 deg. cylinder heads Edelbrock Air Gap intake Holley 750 DP with HP main body 1 3/4" headers Drivetrain: Pro built Th350 with 3,000 stall converter 3.90 gears with a locker It runs well, but I'm looking to get that last little bit of performance out of the car. From what I've been reading the Air Gap supposedly runs out of breath at 5500. Would I see enough of an improvement to go through the hassle of an intake swap?