Buddy uses a modine 397, [ '62ish ford 6 cyl.pick up] pre-'70 ford and SBC port locations, you must trim off most of the mounting flanges, some of the upper tank shows, he uses a defuser for 4' overhead lights... pic of a '31 shell, '28-'29 shells are 1/2" wider... the defuser panels do [2] A shells... $13.00 at loes...