gt to bullitt intake manifold numbers?

[Slapyo]

what kind of increase would you see going from the gt intake manifold to the bullitt intake manifold ... no supercharger or turbo.

i have searched through the forums for info on this, but all i find is people saying that it is really good for forced induction cars or cars with nos. but i haven't found any numbers for someone going from stock gt to bullitt.

trying to get an idea of what kinda of increase there would be. only mods are timing adjuster and underdrive pullies.

heh, i know it cost alot too ... but right now i'm not worried about cost, i just wanna know some performance numbers.

 

[jeffnoel]

One of the Mags did an article on the swap, and showed an NA motor only got about a 5hp bump for the $$.

 

[xtrm281gt]

i have also heard the gain is 10hp or less if your car is NA which doesn't justify its cost at all

 

[DBMSTNG]

it will only add 5-10hp PEAK, but it improves torque at low to mid rpm. is it worth it? probably not. but if you want the most out of a n/a motor, you should get it. with some porting of the intake and some cams, you can get much higher gains.

 

[Slapyo]

ok cool ... thanks! obviously later on down the road tossing a supercharger onto that would produce some really nice gains then.