With that duration at .050 the idle's gonna be pretty rough. My cam in my nova is a .671 669 280 @.050 106 lobe center. It's pretty rough. Your idle should be around 1200-1500. Mine idles at 1300 in drive.
__________________
68 Camaro
Gene Fulton 632ci Two stages of Jug
8.41 164mph Rockingham 1-26-03
|