Well I followed suggestions in other threads and so far....
I have a 1992 Z28 305 TPI that won't rev past 3000 RPM in park.
I replaced the fuel filter, the pressure and timing seems to be OK.
I was told to clean the MAF sensor, so I tried to find it (thanks Haines) and ended up taking the throttle body off only to discover there is no MAF! Now I have the throttle body in my hand and all I have is a throttle position sensor that I don't know how to check and filthy coolant soleniod poppet valve that I don't know what it does or is supposed to or how to test it.
So, I have two questions.
How do I test the parts I dissasembled?
If they are OK what else can I check that would cause the low revs at WOT?

 

you have a map sensor not a maf its on your plenuem near the back.. if you look it the thirdgen tech area it will explain how to check your tps

ps you have a 305 engine not a 302... check your sign

 

The TPS checks OK. Cleaned the valve. Gotta put it back together then I'll start teaaring down the back end of that pretty aluminum thingy next.

 

How old is your cat converter under the car?

 

Haven't a clue. I think once I put the throttle body back together I am going to disconnect the converter and see how it runs. I know they get clogged sometimes. Thanks for the reminder. Easier than playing with them fiddly bits under the hood.

 

Fuel pressure pegs the needle (25+) on my guage even at WOT. Guessing the fuel pump is OK.
Timing and vacuum advance are good.
Guess I'll have to use the air chisel to remove the converter.