ok guys heres my plans, i wanna get a 351 efi, rebuilt it, put a mid cam in in it (my truck's MAF) and put a supercharger on it. my question to you is what would be the best supercharger for my truck? im not too informed on them so any help would be great. i plan to tow with it some but would also like some power to play with.

 

https://www.ford-trucks.com/forums/1...351w-5-8l.html Have a read here.

 

Powerdynes are good if you want a mild, easy, no fuss bolt on. A Vortech is years ahead, though. I know someone selling a very nice used Powerdyne setup for regular F-150's I was interested in for my Lightning, but I'm going the NOS route.

 

What kind of HP and torque gains can a SC provide?

 

That totally depends on what your engine can handle and what supercharger you're using with what impellers and pulleys.

 

Back in the 60s Shelby American used to advertise 46% more on a small block Ford. I
would expect it is somewhere around 30-35% depending on the engine. I would strongly
advise building the engine with premium components throughout if you are going add a
supercharger. Also make sure the static compression ratio and cam are compatable
with a supercharger.

 

A good rule of thumb is 14 horsepower for every 1 pound of boost.

 

If you build the engine to be SC , with forged pistons & some good rods & a vortech SC with the right amount of boost you could get close to 50% increase i would think ....Lew