does antone have an adjustable throttle position sensor on their throttle body? do you know the manufactures name? ecklers camaro no longer sells it and wont say who makes it.

 

you can make your TPS adj just by fileing the screw holes. i did this recently on a friends car. his Mv was at .77 which is WAAAY off. after we filed his we got it down to .55 which is still acceptable. his car drove MUCH better after we made the adj.
but to answer your ques, an adj unit can be bought. see what TPI parts can help ya with.

 

i got mine at autozone, its GP SORENSON. works just fine. and as far as i know they are all adj. on TPI engines. TBI not positive about but believe they are as well.

 

https://www.thirdgen.org/tpimod2 This is what you need to do.