The camaros of the same years would. Most GM of the same vintage i believe look similar but the mounting brackets attached to the horn may differ from ours.Later models(i believe 70'+) will differ and have a flat bottom.I'll be going to a wrecking yard that is virtually unknown,only to locals, next weekend.I have been there before and they have tons of GM classic cars. I probably can find you a set of horns but not necessarily fiebird or camaro of firstgen vintage but horns should look the same.
David
http://FirstGenFirebird.org/show/closeup.mv?CarID=571 If i don't get this car back on the road soon i'm gonna go postal! On a quest for FGF knowledge 1968 Pontiac Firebird Convertible 1969 Oldsmobile Cutlass "S" Convertible *Sold*