I have a 94 Z28 m6 and i was wondering if a Chip or a power programmer is worth it for a basically stock car? what are the hp gains?

 

I think its worth it. I definately noticed a SOTP feel when I did mine. Only do it with a 160 stat install and use the Thermaster chip.

 

Welcome to the board, both of you. Those ad's for hypertech programer are pretty enticing. I assume by the money you want to spend on a programmer you are serious about starting to do some mods. For a program there is several great programers that people can turn to.
http://www.pcmforless.com/
and
www.madz28.com
I would suggest doing a search on these two to start, read abit on them and make a decision.
Again, welcome to the boards.

 

With an M6, I'd stay away from HPPs. They don't do much for the money. I'd go with a mail program when you get a cam.JMHO