I just finished installing an Edelbrock tunnel ram with two Holley 600's and have a question about jetting. Everything's setup really nice, idles at 1,000 rpm, quick off the line and hits 4500 rpm instantly but falls flat from there. I have plenty of throttle left but it inches up very slowly and doesn't go beyone 4500. I turned my scoop around (open to the rear) and picked up 300 rpm. I turned it forward and put a piece of paper over half the scoop and picked up the same 300 rpm. I'm not sure how to read plugs and frankly am a little worried about shutting the engine off at WOT (low free board). I'm thinking I need to jet up a bit but it seems that 2x600 cfm should be plenty for a BBC 402, 10.5:1 compression. Any ideas? I'm not familiar with tunnel ram setups and am baffled that it seems to be lean.