New Setup

[mississippibandit1]

Hey guys I have a 1972 C10 With the original 350/Th350 combo and I believe it has 3.08 gears in the rear. I have put a Edlebrock dual plane intake and a holley 600 carb on it. Im wanting to make it a great truck to go to the cruises in and currently the gas mileage is horrible, maybe like 8-10 mpg. I was wondering if you guys could give me some pointers as to which way I need to go eigther a complete drive train swap or what pointers you may have to make the current setup better. Thanks guys for all the time and effort yall put into this site ive enjoyed reading it many many years. P.s I put some photos of my ole gal.