I replaced the stock 110HP with a late model rebuilt 140HP (forged pistons, bored 0.40 over, high stall torque converter, 4 carbs, the exhaust are dual trombone glass packs, aluminum pans - oil and differential and valve covers) I just turned 1000 miles on the new engine.
She ain't no late 60s muscle car but shes not a Pinto or Vega either..LOL