Cam And Lifter Kit [CL390171] - $603.00 : ISKY Racing Cams, Do It Right
Hyd.67- Valve Lift Int/Ext. 0.465
- Valve Lash Hot Int/Ext. 0.000
- ADV Duration Int/Ext. 270
- 0.050 Duration Int/Ext. 221
- Lobe Center 108
I was going to use a (used) similar cam in a blueprinted 340 I am building but one lobe is a little shy of specification .005 to be exact. The corresponding lifter had not been spinning. It has a decent groove in it's face. The 340 is at 4.100 bore now. I Liked the old cam but things have changed on the engine.
Promaxx shocker 170 cfm heads and PRW stainless roller rockers. 1:6 as per B3RE suggested along with his correction kit. I read PBR's write up about these heads and I see that not much flow increases between .450 and .500 lift.
Is it a safe assumption that lift beyond these numbers is a waste if not undesirable? I realize there is more to it than just lift. I'm running 3.91 gears. Auto (904 or 727) with stock converter hopefully. Funds are running low. 67 Barracuda at basically stock weight. I have Doug headers and late model 340 manifolds. My intake options are basically stock manifolds. My best available option is the aluminum Mopar stock replacement square bore with a 600 cfm double pumper. I'm willing to step things up but its just going to be a grocery getter that blows a few doors off on the way.
I am not trying so set the world on fire. I just want to have some spirited driving.