Can you see if there has been any work done to my heads?

Fyi my fellow 273 friend, veloicty is king with the little 273! bigger valves,bigger ports & bigger chambers=murdering what little torque down low weve got now! I speek from exp! The higher compression from a true commando helps but only so much. Nice to see a cool duster sporten a grumpy little 273:supz: VERY cool!!!