273 Commando Engine Clone

You can get the Commando/Charger 235 hp cam a couple of places. Racer Brown can grind one close, I just ordered one. I think Cam Craft has one also. The Commando/Charger cam is very small, .415 intake lift and 203 duration @ .050 with .425 exhaust lift and 207 duration @ .050. All 273 engines had solid cams and rocker gear from 1964 through 1967.

Commando/Charger 273's came with a Prestolite dual point distributor, Single plane intake, AFB 4 barrel carb, cam, valve springs, 10.5 pistons, unsilenced chrome air cleaner, and the black krinkle valve covers with aluminum fins and spark plug wire holders.

I would not run 10.5:1 pistons on the street today. We built a flat top piston Commando 273 with the Isky E-4 cam with no extra parts that made 266 hp on the Dyno.
Is there a reason 10.5:1 is not recommend for the street ?