I need a stock prom/ chip for my 92 tpi auto. It was a 305 tpi and now it's a 377. Can't find anyone local to make a chip so I'm going to learn how to program myself. I just want a 350 chip in case I completely screw up the only current one I have during this process.

 

www.tunedperformance.org can get you a stock chip

 

 

I have aujp memcals pm me or email, the stock chip is uv erasable most but a Moates.net g1 piggyback adapter.
you knock sensor frequency is not as good with a 305 memcal vs a larger bore 350 memcal. They are different.
you can uv erase and program your soldered in prom or solder in a dip socket like above Moates d2.
then you can burn directly with a hdr 1.