Hydraulic Roller Cam

[Eggman]

Hey guys I just got a 1989 360 roller motor with 20,000 miles on the rebuild.It has an eddy RPM airgap intake and a stock roller cam.I was wondering if anyone has ever used a comp 264hr-12 cam in anything.The specs are 210/220 duration at .050,480/480 lift on a 112.I want a little more cam for this motor but it has compression limitations and I don't want to make it a slug.

[peg leg]

If that cam acts any like the one I have, it is plenty of cam.
I have the Mopar 5007551 roller cam, 9.75:1 compression, airgap mainfold, 750 Demon carb, 3.23 gears in My demon. It will boil the tires all the way to second gear and then some.
Specs are:0.472/0.487 lift, 272/278 at 0.050 and 119 lobe separation.
The idle is fairly docile, and the performance is a shocker. I thought I'd bought too little cam. Nope!
You'll like your choice.

[cudabob496]

I would have thought a roller cam with more duration would be more desirable and would give a lot more power?

[peg leg]

That's the surprise with my cam. No choppy idle, no vacuum issues, just good performance. Thumpety cams are good to hear, but it turns out, there are other alternatives. Very stealthy!