how many MPH will I pick up with my longtubes?

[V-Sicks]

Approx how many MPH should I pick up with my longtubes and retune in the 1/4? I went 112 last season

 

[kezell]

Most liklely wont be alot. I did the long tubes, ported intake and checked the tune. I picked up maybe 15 rwhp through the band.

 

[V-Sicks]

what mods did your car have when it made 339? The ones in your sig?

 

[kezell]

Yes all the mods in sig, well plus a tune.

Those are standard numbers. I just made 285 on an mustang dyno if that helps any.