So i have a 1983 Trans Am with a 305 cfi converted to a 4bb carb setup. the car has a very weak mild cam in it now, i was wondering if the ZZ4 cam will fit and work with my motor. its stock internally, i figured i would have some light head work done during the install. if the zz4 does not work can some suggest a good strong cam for me?

Thanks

 

No, the ZZ4 cam is a factory-style roller lifter cam. Your block isn't made for it.

A good ol' Comp XE268 would wake it up. Figure on new valve springs to go with it, though.

 

is their anything else other than springs that i should get for it? i do have a bit of valve smoke during start up, would valve retainers do the trick?

 

Smoke at start-up is usually valve stem seals. When replacing the valve spring would be a good time to do them as well.

The stock valve spring retainers have heavy "rotators" on the exhaust valves. Replacing all of the retainers when you do the springs is a good way to eliminate those things.

If you're willing to pull the heads while you're at it and take them to a machine shop, have them cut the valve stems for positive-type stem seals as part of the "valve job". They can install the new springs and retainers and make sure the spring height is right while doing it. If you're willing to spend a little more, have them install 1.94" intake valves as well.

As long as you have a decent exhaust system, the cam and head work will make for a very nice running engine.

 

awesome thanks! Yeah i have a new exhaust on, its a single pipe with no cat/ 2 1/2 dia.