alright Wats up guys I need your help and opinion. I got a eg si it came with a gsr with boltons it has 4-1 headers,elbroke intake manifold aem fuel rail fuel presurre regulator 255wl walsbro fuel pump.p28 chipped with 2step rev lint at 7. Idk what type of tranny it got how would I be able to tell and to know if the head is built or not. I am running it tommarrow what do I got to do to make it run hard it also has a stage 3 clutch please help

 

If the transmission has a VIN tag, you can decode that easily enough. If not you'll have to compare revs and speed in a few gears. As for the head, you'll have to look at it, and know what you're looking for. Aftermarket cams are easy enough to identify, but only if you know what to compare them to. If you don't know chances are nothing was done. What did the previous owner say when you asked these questions?