I wasn't aware of the aluminum 2bbl intake on the 260, but I can't say that I've paid much attention to those engines either. The A4 intake from the 80-84 307s is a good, inexpensive choice for an aluminum 4bbl SBO intake. Normal size ports, Qjet mounting pad. Avoid the later A5 intakes, which have the constricted runners that match the peanut ports on the
7A heads (not to be confused with the
7A heads...)
