Performance Chips

I was wanting to put a performance chip on my 94 z. I had been looking at the hypertech ptm but then i found the venom one. Which one is better, and i also heard that u can use both of them because they r used for different things is this true?

Your best bet is to get a custom tune done via dyno, street or track, rather than a generic "tune". Think about it, would you liek your actual data read and that used to tune, or a general tune based off of someone else's car that may or may not give you good benifits??