273 engine identification.

This is an F7 car according to the fender tag. Assuming this is the original engine (I know, we don't like assumptions) but it certainly appears to be. It should be a 10.5:1,solid lifter engine. The upper case AB# is 32, which should represent 273 V8, 4BBL. The 5th digit in the vin is D. As far as I can tell this could represent the 180hp 2BBL model or the 235hp 4BBL. I don't think the Formula S cars came with the 2bbl but I don't know that for sure.