the next thing i am going to do to my car is get a dyno tune...what kind of numbers do you think my car will put out and how much will the tune give me do you think??

i have a 1997 gt, auto and here are my mods

slp longtube headers
slp o/r xpipe
flowmaster 40 series mufflers
frpp 4.10 gears
bbk cold air induction system
accufab 70mm t/b and plenum package
steeda underdrive pulleys

after the tune my only other mod i am thinking about is an slp loudmouth catback, this won't affect my tune at all will it?? okay guys post some numbers for me thanks

 

I have an 01 and similar mods also an auto, see my sig for them. I know its a different year and model, but i did 240 RWHP and 285TQ. You might gain a couple HP with the SLP since it is a "straigh through" exhaust and the flowmaster is muffler, but dont quote me on that, thats just what I've heard.