Intake manifold for 225 slant 6

62 valiant, I agree with Dan, with the change to the SuperSix set-up, driveability, performance and mileage is greatly improved, executed with thought. Now if you can locate a Super Six set-up this is a factor that you must deal with, they are not easy to find now. Maybe e-bay. I have the Super Six set-up on 225 SL6 in my 70 Challenger. I'm using a 2bbl from a 318 (280 CFM), Mopar elect. ign. W/ orange box and HO Accel coil. Open element air cleaner K&N filter. Hooker Headers 3into1, 2.25", real alum. Pipe 2.25" dual exhaust w/ H pipe crossover, 2 glasspacks out to back. Auto.(904) w/ B&M shift improver, 8 3/4 (742 case) 3.23 gear set. It works great and I don't believe I've over done anything. It's efficient has decent power and mileage and have been driving it this way for years. Thanks, Al