Quote: Why would the max wedge be down on HP ?over a single four?stock 426 max wedge was at 415 or 426 HP This is a good 440 with good pistons and good cam 590-625 roller .The EZ-1 heads would not keep the HP around 425 ?or more ?
That manifold is a restriction, if nothing has been done to it. The newer single plane intakes will outflow them. I know they are great for the cool factor, but for performance they are down. Read AndyF's book, he did back to back dyno tests, down 80HP.
