When a SHP BB with chrome rocker covers was painted the entire top of the engine was covered. There should be very little orange on either end and none along the sides.
Like so:
The exception to this is 65-67 BB Corvettes which did not have chrome rocker covers. Only the intake was covered and there was some orange overspray along the sides of the intake as they had to paint the rocker covers.
I do not believe any of the claims made about this car. Not registered until 2006? Chevy just handed someone this car with no MSO as they stated it does not come up on an NICB search. Somehow it was owned for 37 years, driven and wrecked but never registered. Sure.