340 Cam Change - Lunati vs. Comp.

FastMopar71 said
I have a 71' Duster with a 340 and a 4spd, and I'm looking to do a cam change. The 340 is bored .030 with 10.5 compression. Heads are stock mopar X heads. The plan is to retain the heads and do a mild port job. As far the intake, either switching to single plane Edelbrock Torker II or Dual plane RPM Air-Gap. Not sure about carb. yet, possibly a holley 650 DP or 750 with mech. 2nds

I have narrowed it down to (2) cams choices and would like any and all opinions based on knowledge or experience with either.

Lunati VOODOO #60403 or Comp XE274H

.494/.513 lift .488/.491 lift
.226/.234 dur. @.050 .230/.236 dur. @.050
RPM Range 1800-6200 1800-6000

The car is 95% street with a trip or two to the track. I would like a lumpy idle which i know by number sake the Lunati would give me more of that, but I want the best overall performance of what i have currently and with these few changes. I'm also thinking more duration would be better for the street and a 4 spd.

Any help would be greatly appreciate! :burnout:

Hey, that looks like my 340! (I run a Isky 280 Mega~480/480 lift + 230/230 @ .050) I am running pocket ported X-heads, an LD-340 intake (dual plane), a Holley 650 DP (I'd run a 750 but I had the 650 laying around) and 273 adjustable rockers. I think I'd go with the Comp cam just because.....maybe it's just me, but....do you need to worry about piston to valve clearance over .500 lift? And the RPM Airgap? That sounds good, unless you worry about cold weather driveability problems. They do have a regular RPM (non-airgap) My 340 will rev past 7K without me even wanting to.