1966 273 Commando - Thoughts

As I am still making decisions about what to power my 67 Dart GT conv I am constantly looking at what is out there for sale. Came upon this and wondered if those with good experience would be able to offer opinions as to whether it might be a decent option. I have read good things about these engines. I know they may not have the torque of a 360 and I can get 350hp from this build fairly easily I think. Add a set of headers and a better distributor, couple of other things, but mostly leave as-is. I am not looking for a tire burning race car....just something to cruise around with that looks AND sounds nice, and have some get up and go when I want it to. With a change of gearing in the back end I think this might be an option. Plus a Commando, although not numbers matching, would be more period correct I think. The guy wants $6500 CAD for this setup...love to get some feedback, and I look forward to thoughts on this.

Thanks'
BigB

"1966 273ci Commando Complete Rebuilt bored 30 over new Dome Pistons 10:1 compression Falcon Ultimate Cam Shaft Kit Cam Street & Strip, 287 dur 480 lift Double Roller Timing Chain, Hi Volume Oil Pump, Steel Crank , Heads 1.88 Intake and 1.60 exhaust and Port Matched to Edelbrock LD4B intake manifold, Crank and Block Shot Peened, Original dual points distributor, Original exhaust manifolds, 625 CFM Competition Series Carter carburetor, have original 273ci Commando Intake manifold"

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350 horse out of a 273 is possible, but going to be a bit of a stretch at 1.28+ c.i./h.p.- and will take more than a distributor and headers. And when a motor that size is pushed to those power levels, it's going to get finickier and finickier...
They are fine, fun motors for a street cruiser, with enough spunk to get the job done when called upon; just don't get carried away with horsepower expectations. Even the special order 1966 "D/Stock" factory race Darts were "only" putting out about 275 horses as delivered...
IMO, a mildly upgraded Commando/Charger motor (which is what that engine appears to be, although the cam may be a hair large for your average cruiser 273) will meet all your expectations on the street- just don't get too hung up on HP numbers.
As far as sounding nice, the Commando/Charger 273 engines had one of the best sounding exhausts ever engineered- and it was a single!