The "Cross-Boss" intake and Autolite Inline carbs are my speciality…as per my handle. I owned a 1970 T/A Boss 302 Mustang and had one on my engine since 1981. It was vintage raced/street driven/open tracked also. A bit of history on the C/B and Inline: they were intended for Trans-Am racing, however SCCA banned them, so none were ever raced in that series. Ford made two versions of the carb the "A" is 875 cfm, and the "B" is 1425 cfm. Some tops of the intake were drilled for both, however, most are for the 875. The carbs are very simple in design and highly tunable. The intake is somewhat of a bastard design as it had a very large plenum, with long runners resulting in uneven cylinder to cylinder flow. Gas puddling is common in number 1 and 5, and can cause a bent rod if not carefull. With a large cam, and huge plenum, with the huge Boss 302 ports, its not a torque motor by any means, and it will need to idle @ around 2000 rpms. However, when it runs in the 4000 to 8500 rpms its heaven on wheels.