I have a 97 with a vortec350 also.I have volant intake,granatelli MAF sensor,msd 6a ignition with msd coil,Thorley tri-y longtube headers,Borla exhaust with XR1 mufflers,X pipe,march puleys,permacool elecric fans,richmond 3.90gears with an eaton posi,and the best mod of them all a Westers 93oct. tuned PCM.I would get a Westers PCM if I was you,that will really wake it up.
Can't do anything with existing parts,you need to put some aftermaket mods and money into it.
I got a K&N, flowmaster, and a "free" flow caty added to my hoe. I noticed a little difference and it wasn't that much pain to my wallet. Would do more but I put all my money into my last truck and ended up giving to my brother.....what the hell was I thinking?
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