I have an 87 LG4 Camaro all stock. just about every time I push the gas it completely looses all power then all of a sudden it comes back, and takes off. I'm not talking mashing it to the floor just pulling away from a stop. also when the speed limit increases I go to give it a little gas and it completely falls on its face. I think it is the TPS, but I figured I asked before I go messing with something that may not be the problem. any ideas? It also does it after it is up to temperature before then it runs perfect.

 

changed fuel filter recently?what's your fuel pressure?cat may be about clogged?

 

Nice picture. I just changed the fuel filter, can't check pressure, and my cat went missing several years ago.

 

U check timing lately, rotor, wires, plugs a good arc in a wire or bad plug would give a stumble like that or corroded cap/rotor

 

I was thinking about that but haven't gotten around to checking those yet. The car sat for about a year so I was planing to do a tune up I'll look at that

 

sounds like it could be an accelerator pump issue