OK, you get my 2 cents. Back in late 70's I owned a 1972 5500 GMC that had a 4 bolt 350 engine with big 2 barrel. I hauled 2000 gallons of water plus tank in a 9 ft dump bed 5+2 speed. Yea could always want more but I would think would stay up/surpass a 261 with a few more rpm's. Maybe the torque of an L98 or like would be a choice.
Last edited by 42465967; 01/25/2019 5:00 PM. Reason: words
