I run at 2000 rpms at 85mph. Can you guys help me out and tell me what gears i have, and how these gears will perform with a 224/224-114LSA cam. Thanks.

 

3.42's. they'll work just fine with that cam. you could always go to 4.10's, but the stockers will work well for ya.

good luck

 

Sounds like 3.42's to me.

That's not a high rpm cam (IOW it should still make good power down low) so I'd think that they should work pretty well with it.

 

if you want to be sure... check the option codes(either in the glove box, or doorjam)

look for a code GUX X being a number

GU4=3.08(not sure ever offered on z28s)
GU5=3.23
GU6=3.42

and I think GU3 is 2.73s but not sure.

but I am pretty sure the 6-speeds came with 3.42s...

 

2.73 is GU2 but if it's a M6 then you're correct in assuming it's a 3.42 car. they all are.

 

Thanks guys!!