Hey guys... I've been running the Comp 23-630-5 cam for years with great results. But since I'm putting a new motor together and my current cam is not only three bolt but also three piece I was looking at other grinds. I'm looking at the Comp 23-634-5. Anyone have any experience with this grind?

Motor specs:

499" low deck
CNC295 Indy SR's flow 355
Indy intake
AED 1000cfm 4150
2" tube headers
Molnar 4.15 2.200 .990 crank
Molnar 6.76 rods
JE pistons .-6 flat tops
4.56 gear
32" tire

Car weighs 2330# race weight shift at 6500 traps 7100

http://www.summitracing.com///parts/cca-23-630-5

http://www.summitracing.com/parts/cca-23-634-5

Time for the roller Eric!

I would agree.

I wouldn't hesitate a minute to use the new cam I would install it so it was in at 105 to 107 intake lobe center and then find out what RPM the motor likes to be shifted at
The first cam may have been bigger than you needed

I certainly don't think you needed that 290 cam. The 634 is about 10 degrees smaller and I think you'll notice the improved torque but it depends where you launch and what your shift recovery rpm is.

I think I have a new TL304 in the box sitting on my shelf. I'll check and see. If I have it I'll make you a good deal on it.

I think the 23-634-5 looks pretty good to have more power through the torque curve, probably about the same peak HP? as the larger cam?

What compression? 12:1 or something in that range?

Should be around that. Maybe a bit higher. I called Comp and they like the cam I have. But when I run it in their calculator the other one makes more power???

Controlled Induction says 265/273 duration for peak power at 6800 rpm. You need a fair amount of lift to feed that engine so a roller cam would probably be worth 50 hp.