[Billett]

I'd suggest the same. 2.5 is big for a stock 350 v8 so its a bit much for a v6. 2.25 would get you by and an H-pipe is always a good idea. Mufflers on the other hand are all about your own opinion on sound. Lots of people swear by their preferred brand or style, but it really comes down to what sound you like to hear every time you start her up.