silver spark plugs cold air in take performance exhaust new rear end preferrablya positraction rear end new stronger transmission gears and all new performance engine components would help alot
You can, but it will kill the performance of your engine.
Yes
There is no such thing as a 1992 IROC Camaro
should be the same thing.
Cut the engine capartment out so it fits
Yes
Yes
will a 3.8 engine from a2002 Camaro interchange with a1999 camaro
Yes.
The 1992 Camaro takes 4.0 qts without filter change
Yes
There was no SS camaro in 1992.