4.3 chevy jet performance chip,for 94 + chevy 4.3 add the extra power you need ,ok it was purchased for S10 with a 4.3 pick up then i decided id just put a 350 chevy.  i didnt need it i needed a v8 chip ,so im selling for way below what i paid,cause i opened to check it out, id check jet performance on chip # to see if it will work in you chevy !

chip #0561-29501