360 into early A, best ex manifolds

As RRR said, no 2 are the same. When my Dad and I put together my first '65 back in late '70, he used the complete exhaust system, manifolds and all (notched the rear valance for the tips), from the '68 'cuda the 340 came out of. Fit like a glove but others have said they couldn't make them fit without considerable work so your MMV.