A better-looking fix is to rethread the air injection ports with a pipe tap and use Allen head pipe plugs to block off the ports. I believe 3/8 NPT is the correct size.
Jerry


"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!