I put a BBk throttle body on my 89 camaro it has a ZZ4 crate motor in it with 30lb injectors and a fast chip. Upper intake is all stock. I decided to replace the stock throttle body. So I put a 58mm BBK on it. The throttle would stick but other than that the car ran fine. I thought it was idling high though so I thought to go through the resetting the IAC and Adjusting the throttle screw. I did everything the grounding the ALDL, Unplugging the timing wire & IAC setting the idle to 450rpm plugging it all back in and ya it was idling at 750rpm then it started surging a little and it smells and looks to be running rich. I put the stock throttle body back on. It didn't fix it now I cant even get it too run with out reving the throttle. I replaced the IAC sensor, mass air, coolant sensor(front one to EMC) TPS is good and set @.58 closed and 4.85 wide open. WTF did I do to my car? can anyone help? or has anyone had this happen too them? PLEASE someone HELP!

 

Vacuum leak?

 

I can't find any leaks? All the hoses are hooked up. I mean this car only runs if you work the throttle to start as soon as you quit revin it it dies.