what would be good cams to put in a 79 z28?

First you only have ONE cam. Second I need to know all your mods including trans type and rear gear ratio to give you even the slightest idea.

cant really give you much of an estimate out of what you said, but if its a street machine that will be a comfertable drive, go with a hydraulic cam and lifters with a duration from 210-220 and a lift a little under .490, but we do need more info to help you best, thats jsut a fair street cam.

the transmission is BorgWarner Super T-10 jsut rebuilt. im nto sure what it all has it sounds like it has a modfied cam but im not sure i jsut bought it and i can't get ahold of the guy, but it has a holley 4 barrel not sure what cfm endelbrock manifold not sure which kind, headers and flowmaster exhuast, i dont no the reaer end when i burn out only one tire spins so iwill probably get a new rear end. any ideas?

Timmy's suggestion above is a good one. You don't want to over-cam it, too much cam is a common mistake and will hurt performance.

ok thanks for all of the information it will be helped greatly, i have another question when im at lower rpms and floor it it makes this clicking noise but once it gets higher rpms either i cant here it any more or it goes away any ideas?

Header leak maybe?

thats whay i thoguht too there brand new headers. my cousin has a 79 but its not a z28 and he said it makes the same sound, i have to put exhaust manifolds on for smog so ill seeif that fixes it and my car isnt that fast ithoguht it would be faster, i raced my buddies stock 1990 300zx and he smoked me so i was wondering if thats normal or if soemthign might be wrong