273 Commando or Not?

Welcome to FABO leonard. Check your fender tag. Plate is located under your hood on drivers side inner fenderwell close to radiator support. Will have stamped alphabet (A thru Z ) on third line. If you have a 31 stamped under the AB it is commando engine. 30 under AB would be a 273 2bbl. engine. Also if car is a formula s it will have a tach on dash(left of steering wheel), formula s badges on front quarter panels, front sway bar and 14" wheels and front disk brakes.

Oldschoolcuda