4 barrel LA Intake

Real world.
My dad bought a 78 W-150 brand new, 360 -2bbl 4-speed club,cab 3.55 all stock, still is.
It got 14.4 new still gets 14.0 tank after tank, the motor has never been rebuilt except for a valve job and timing chain, 240,000K.

I have a 78 W-150 318, 4-speed, 3.55 no options, standard cab swb that only could pull 10 mpg with the stock bbd, the truck has 80K original miles.
I put a LD4B intake and a 750 holley vac sec, and the average milage is around 14 mpg.
My wife says the old truck runs alot smoother and is more responsive, this is comming from an non-car girl.

So the point I am making is the stock stuff will work as good as the aftermarket.


I have a 78