How much power gain from these mods?

[KingDiamond]

With my mods in the sig, and GT40P heads, GT40P headers, and 65mm FMS throttle body.

I am not changing the intake because I'm putting in a KB 1500 supercharger in August/September and it only works with the stock lower or a GT40 lower.

 

[Venom351R]

somewhere in the ball park of 260 RWHP I would guess

 

[tmoss]

If you decide to stick with the stock lower, at least get it ported to maximize the KB potential output.

 

[5.0 from 95]

If you decide to stick with the stock lower, at least get it ported to maximize the KB potential output.

Go get him Tom...


Paul

 

[tmoss]

Even if he does it himself, it needs to be done for the blower.