318 drinking gas like hell

the engine and the van is from 1988 so it has been a tbi from the start, but I put on the carburetor because the tbi dident work.

the intake is a edebrock performanc plus, and the carb is a carter 600cfm,
the heads has been rebuilt with machined valves and new seals so they are totally sealed, no blue smoke the heads are 302 with close chambers . the cam is a original roller cam, the pistons is flat top, the fuel pump is a carter mechanical,

the gear in the axel is 2,76 and the gearbox is a 904 lock up that works great.

it has always drink alot of gas when highway driving.

it has stock manifolds and dual exhaust with H-pipe.

the engine is in very good condition

the van weighs is about 2900 kg or 6393 pounds