hey guys, i'm not sure what chip to use for my car. It was a 305 tpi which has been replaced buy a 355 and not sure what aftermarket chip to get.. it's not a crazy built motor so i'm not askn for a custom chip but possibly a hypertech or jet or even a gm chip to install, i'm assuming my 305 stage 2 isn't going to give me as much as even a stock 350 chip could do, any suggestions??? thanks ahead of time... any advice would help...

and would i benefit any from my stage 2 hypertech chip over my stock 305 chip?

With a custom chip you will get the best drivability and power. You will want a chip for a 350 not a 305 as there are differences.

Hopefully you have installed 22#hr injectors already. What are the camshaft specifications ?
If your wanting to have your memcal reprogramed for a 350 send me a personal message and I can assist you with the change.

Hope I didnt cost you a set of tires

they just barely passed this year, we will see what happens next year..