I believe I saw this car discussed elsewhere on the site - but in any case, here's a '70 LS6 with its original build sheet (which wasn't posted in the ad, so I requested a copy from the seller). The sheet looks good, and indicated it was sold new at Reedman Chevy in PA.
White on red is one of my favorite color combos, and anecdotally I haven't seen many LS6 cars ordered this way. Pretty sweet....
Link to 1970 Chevelle LS6 auction
136370A135707