I liked the .484 in my old 383 Dart as to me it rocked in that car. It was a stock 1970 shortblock and I mean stock as it still had the stock bore. I just freshened it up and added a set of 452 heads I cut for 9.5 comp and we did some mild bowl blending on the 452's. Had the .484 MP cam on a 102 centerline with all stock valvetrain including stock rockers. I did use Comp single springs. Then I used the Performer RPM intake with a 750 DP. Stock dist I recurved and CPPA headers with 2-1/4 exh pipes. Used a TA 3000 tight converter and had 3.91's in it. On McCreary G60-15's it ran a best of 12.31 @ 110 which really impressed me for the combo and it had great bottom end. Ron