hey are there any tips or tricks that yall can pass on to help me change the plugs, wires and cap for my IROC Z?

 

Don't use plugs with the screw-on tips.

 

Headers, or stock exhaust manifolds?

Nothing wrong with them. Loosen the tip a little, squeeze it down a little in the vice, tighten it back down. It'll stay put.

 

put anti-sieze on the plug threads and a little dielectric compound inside the plug wire boots to make them easier to remove in the future.

i had to disconnect the A.I.R. tubes on the driver's side to get at the second plug up from the firewall.

 

Some of the plugs are much easier to get from under the car. Like #5 and #7 mentioned above.

 

When I did mine, I used a rachet, spark plug socket 2 or 3 extensions, a u-joint, 3/4 wrench and a stubby wrench.
You can put the wrench on the outside of the socket if you cannot get a rachet to it.
My car is an 89 RS with shorty headers. Don't know what brand they were on when I bought it.
But I got all of mine from the top. Took a little bit but not to bad.
I did have to get header plugs though.