what would be the largest cam i could get to go with a track heat Intake and TW heads?

 

Its now how big the camshaft is in regards to lift or duration but it how well it works with you combo.

If your heads and intake work between 3000-6500 you should find a cam that also works well in that range. You have a lot to consider in cam.

What it intended purpose? Race, street, etc. - Big cams are horrible to drive on the street

Does it need to idle nice?

Does it need to pass emissions?

What rear end ratio are you running?

Are any of the other parts ported?

Will the car be NA, Superchaged, Nitrous, Turbo?

What the compression of the car?

What transmission is in the car?

IS your car have mass air? (I assume yes)

You car is a 95? Does it have the factory computer (because its prone to detonation)

 

I'm pretty sure the springs on those heads are only rated for a .540 lift. Anything bigger you'll have to upgrade the springs.

 

As far as I remember, it should have no more than .500" lift, 220 deg. duration, with a lobe separation of 110 deg. That's to the best of my recollection and it really depends on your car, my '88 passed no problem with a 512" cam even though it wasn't an e-legal cam, good luck with your combo.

 

I agree 100%.

I went the custom route due to my heads being worked the way they are, but, yours being a 95, you possibly could benefit from a custom grind as well, letting the grinder know that you want it to be emissions friendly as well. They ARE relatively expensive compared to an OTS cam though, so, it really depends on the budget. I'm sure a number of guys here who have run different cams in their cars can give you their input.

I've run the TFS #1 and like it.
A friend of mine runs the XE268HR and it has a nice sounding idle and also passes E-test. He's also running the TW's.
Apparently, the Crane 2031, though older, is also a nice camshaft.