Could you imagine slipping on the side steps when there wet. I would say soprano for sure.
The header tubes are evenly spaced, so either it's a hemi or not mopar powered.
my guess is a 62ish 4 door valiant on a gm truck frame...anyone got any other guesses?
What, pray tell, made you pick GM?
One thing, look at the arch he's got into those springs. That thing can NOT possibly be stable.