ok imagine with me for a minute:
my '91 5.0 f-150 with a Kenne Bell 5.0 Truck supercharger. I understand this thing bolts directly to my lower intake.

so my questions are: is it best to use the stock lower intake? if not what is a good alternative for my EFI intake? would i need higher flow injectors?

 

The 302 truck lower actually flows very well. When the pro 5.0 class first originated, guys were using this intake on thier cars before aftermarket ones were available. The rectangular offset port design was copied and used on several aftermarket intakes as well.
It all depends on the rpm and power levels you are lookng for, but I would use it.

 

thanks for the input. this is exactly the kind of answer I was looking for since i'm cheap.

 

How are you getting a 302 to 408?

 

I was lookin' at the same thing. 351's can be stroked to a 408 though.
As far as the lower intake goes...extrude honing will allow it to flow/breath better.

 

Just wondering because the 302 lower will not fit a 5.8

 

that is my OTHER prject. more long-term. i should change my sig. the supercharged 302 is more immediate.