Had a friend when we were in high school with a Rambler American. Reliable, but the steering was beyond slow. We all had man steer cars, but his was dangerous. I'd certainly look to convert to r&p if possible (Mustang II rack).
Good stuff about tuning here (temp control).
OLDSmobility.com - The 1967 Oldsmobile Cutlass and 442 Resource - 'Turnpike Cruiser' - Car Life April 1967
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