1986 Irocz???????

Well guys ive owned my IROCZ for 3 years and i am starting to have doubts that it is a true iroc. First the rear brakes where drum Not a problem b/c it was an option in 86 and not standard. Second ive her that there are special manifolds that go on the IROCZ and mione dont look anything special. Is there a code in the listing inside the console that will say for sure weather its and IROCZ???I was told B4Z was a code for the IROCZ......MIne has it but im still woundering......

go to thirdgen.org an used there rpo decoder

Thanx man that was alot of help and It ends up the b4z is the iroc package. Thanx for the post that decoder will come in real handy.

no problem and yes it is very very useful the also have a vin decoder