Re: Need advice on 1.6 to 1.7 rockers
I've heard the 1.7 rockers don't start to show any extra hp increase over the 1.6's till your over 6500rpms. The 1.6's provide a more "dead on" geometry on your valvetrain. Maybe try a 1" 4 hole spacer if you don't already have one or spark plug indexing. The Victor Jr intake responds well to the 347 too.
347 Stroker, 10.6:1, Vic Jr, World Jr. heads (2.02/1.60 valves), Custom 780cfm ProSystems 4150 Double Pumper, XE284H cam, MSD E-Curve, 4.30 gears/31 Spline axles, Tremec TKO 5 Speed w/.83 5th gear ratio.
Last edited by Spali32; 05-07-2008 at 05:20 PM.