I need the IAC adapter and screws for a TPI throttle body, with IAC valve.

 

You mean the housing that the valve screws into? And for what size engine?

 

Ya...its for a Lingenfelter 58 mm throttle body, the stock one should bolt on right?

 

Not too sure about that. Well, for 5.7 TPI I guess. You have any instruction sheet that says stock one should fit?

 

I found two slightly different ones. One from a 91 Z28 5.0TPI engine, the other from a 94 Z28 5.7 TPI. They look like the mating faces are identical, but the hose fittings are a little different and the earlier one has the screw in IAC, the other has the later bolt on one with the right angle connector. Both have the IAC and connectors if needed. Get me your email if you would like pics or