ok just wondering if 235 60 14's are smaller diameter than stock tires for a 80 v6 with auto? This car i believe has 2.73s stock since it was a v6..it has a th350 and 350ci. I was wondering if the tires are smaller will it make turn more rpms at say 60mph?

This should help.

http://gs.tolan-hoechst.com/tirecalc.htm

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350CID, Vortec 062 heads, Magnum 280, Performer Intake, Holley 650 DP, 3.42 rear w/ Auburn posi, 2600 Stall/TC