Is It Possible?........
Did this one years ago 1994.If not for the wheels and tires it looked like everyday grandma driver.
Slant 6 usual mods.Intake, carb, headers, head work.Shocks, springs, front and rear sway bars,.920 torsion bars,225/60/15 front 235/60/15 rears.
Interior done,high back lumbar seats,race belts. Did several long haul Power Tours. Cruise 80-90 mph.Top speed was about 115 before it started to float a bit at 120 square box aerodynamics and didn't like that speed for long.
Rpm was done anyway.
This one was a stock Slant with air,ps,pb.Underneath same suspension mods as the red one. Same size wheels and tires but 72 stock Chrysler road wheels. Driven coast to coast. Another 3 time Power Tour long hauler. Both cars looking stock but fit as touring cars. Handled great,Low budget.So it is possible,subject to definition.