There is no such thing as a GMC 235. You might have a 228, a 248, or maybe a 270. Look at the stamped number behind the distributor- - - -the first three digits are the engine 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!