Summit Racing has NEW, not rebuilt Carter pumps for the 235 for $32.97 with free shipping. That should solve your problem. Search Ebay for "235 Chevy fuel pump" to find the Summit ad.
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!