When I was TPI this cam was great, but now I am carbed, and a 150 shot of the junk also track only, I feel like this cam is holding me back and am trying to find the best cam that I can just slap in there with out changing anything elese

What I have:
4.10s
2500 stall

Cam:

Compcams 08-414-8
1800-5800 rpm
LCA 111
Intake centerline 107

Intake exhaust
Duration 280 284
Duration an .050 230 234
Valve lift .474 .474
Lobe lift .317 .317

Springs:

Compcams 26981-16
Max lift: .525


If you need more info just ask ill try to remember.

 

Your torque converter is holding you back with your current camshaft. It needs a converter with about a 3500 stall speed.

Your camshaft is also designed for a 4x4 so it has low lift with a long duration to build low end torque.

If the heads and pistons are set up to allow the max lift that those springs are rated at, a 08-432-8 would be better.

 

What carb and intake are you using? What are your goals for the car? Hydro Roller i'm guessing?

The converter you have now is going to be a problem with a bigger cam because it's already the minimum for what you have. The next cam you choose should be something with a Duration in the 240's @ .050. It should have a lift in the range of low to mid .500's. You will then need a 3200-3800 for your combination to benefit.

I run a XE-284-h from comp with similar numbers to what I posted. Cheap and performs great.

 

yup the motor was built around that cam. before i knew anything abouta motor i just said yeah that sounds good! i figured id need a new converter anyway i just didnt want to repace everything in this engine just yet

yup forgot to mention that it is a 88 block i will be using either a holey 650 or a proform 650 to test with, and for intake a rpm airgap

 

call Cam Motion and be done with it... They'll get you exactly what you need

 

What heads do you have, and do you have any flow numbers? What is your compression?

 

stock heads, but with 1.60/2.02 valves mild porting no flow numbers.
9.75:1

 

Remember when picking a cam for your car think of how you drive it, you have low gears so you are going to come out of the hole pretty hard anyway, you have a 700r4 which chances are have really low 1st and 2nd gear and your stall is a 2500 so picking a cam any lower than your stall rating isnt gonna really help you. You want a cam that is going to start working above at least 2200rpm. Call comp cams they have a nice cam selection for running the juice.

 

get a xtreme energy comp cam that has 2500-6500 rpm range and then get a intake thats 2500-6500 rpm and it will work pretty good with your gear and stall, thats if your motor will turn that fast without throwing a rod.

 

i live my life a 1/4 mile at a time LOL!
car is only going to be drag raced... im in the process of building a 496 for it.. but in the meantime i just wanted to pep this motor up

 

I agree that at this point, your converter is definitely holding you back, and going bigger on the cam is going to exacerbate the problem.

Normally, I would say not to go any bigger (higher duration) on the cam, but since you are talking track only, no street, you don't really care about the bottom end (as long as you address the stall issue). Since your heads are stock, I don't think you will see a great difference in getting a higher lift cam, though 1.6 rockers might help as the ramp rates will be higher holding the valve at the mid lifts for longer. Maybe a cam with about .500 lift with the 1.6 rockers would help as well as going with a longer duration (again, as long as you get a higher stall converter). My suggestion would be though, if you are serious about building the 496, don't spend too much money trying to mess with this motor.

Anyways, good luck with it man, and keep us posted on what you wind up doing.