A few of u know I needed a new intake, bought one on ebay, but when it got here it has 2 diffrent part numbers on the manifold,

On the car 88 GTA:
142360
10066016

On ebays:
141448
10066016

The guy said it came off a 88 firebird, but has diff numbers, is this right? Anyone know the diff P/N? Also the sidebolts look like theve been widened out, was this to modify it for an 87+? If this is off 2 diff years, what are the key diff besides the bolt patterns? Would I be able to get this one matched to the same pattern needed and be ok?

Thanks for all your help

edit, also the one I got was black and mine is silver maybe he just painted it though. Would Carb cleaner be ok to clean out the manifold, inside is DIRTY, anything I shouldnt spray it on? I know nothing about this stuff...

 

Any One?