A 360 in my 3700+ lbs. '79 Dodge Magnum would get 20 MPG's.
OE '79 - 360 backed by a 904 & 2.76 gears w/245/60/15's Fed-Mogual 625 AFB '73 trap door air cleaner & K&N filter OE iron 4bbl. A used truck vacuum advance distributor MSD 6A Dual exhaust @ 2-1/4 with twin cats (law required at the time) and an "H" pipe off the exhaust manifolds.
