Wasn´t that match when , afterwards in the press room Connors said to Nastase something like: "Hey buddy, you might not have a house anymore"? ( there had been an earthquake in Romania the day before and some journalist had told Connors about it but not Nastase)I have not seen any Nastase-Connors match but I bet you're right, since that is more or less what Ashe did to beat Connors at Wimbledon (not the part about getting into Jimmy's head, but the other stuff).
Nastase beat Connors in April '77 as part of the WCT Challenge Cup, 3-6, 7-6, 6-4, 7-5. The New York Times said that he won because of a strong serve, aggressive play and his “usual strategy of mixing speeds as much as possible against Connors’s power.”
Nastase had a 15-5 lifetime edge over Connors, according to some press reports earlier that year.
Their H2H is somewhat uncertain because the ATP doesn't count all their matches. The Times reported that Nastase went 5-1 against Connors in '76, one of Jimmy's best years (even though Ilie turned 30 that year).