Someone please correct me if I'm wrong, but since Larry's car is a convertible it could not have come with RPOZ07, which was limited to coupes only.
Part of the ZO7 option was 9.5" rims all the way around. Stock (non Z07 cars) rim sizes were actually 8.5" up front and 9.5" in the back. The 1992 Corvettes (both coupes and convertibles) were actually the only year that came with 9.5" rims all the way around as a stock item. In 1993 this changed to 8.5" up front and 9.5" in the back, and remained that way for following production years unless there was a special suspension option (or car - the Grand Sport, for example) ordered.
So, to answer your question Larry...from the factory you should have had 8.5" on the front and 9.5" on the back. If you are looking to put the 9.5" rims on all 4 corners, they will fit and then enable you to also upgrade to a wider tire up front.
Anyone find error in this?