If I'm not mistaking Marc Rosset hit 34 aces, defeating Jordi Arrese in the final of the Olympics in 1992 (he seems to be the first to do this on clay)[5 sets].
When Kevin Curren defeated Connors in Wimbledon 1983, he hit 33 aces. Connors also survived 30 aces from Noah to defeat him in Boca West 1986 (both 4 sets).
(from Page 12
Thank you for the confirmation.