Low compression on commando 273 with 13000 miles??

Marcohotrod said
sluggish and low- don't know your compression ratio but with that cam I think with the throttle open she should be around 150. was it bored and honed? could be leaking by the valves

My thought was possible the heads. It was bored and honed. These are 920 closed chamber heads that were just shaved to make flat, they were listed as 10.5-1 but i know thats not right without shim gaskets which i didnt use. Thanks.

383Scampman said
x2 Marcohotrod I would retorque the head bolts ..If that doesn't work check the valve seals . Hope they are PC seals . If that doesn't work check crosshatch on cylinder walls . check for a blown intake gasket . Hope this helps .

I retorqued the heads a few months ago, i used felpro gaskets i think that were .40 torqued. Thanks for the response.