Long time lurker, first time to post. I have a '74 Swinger, gen 3 426c.i.(hughes engines dyno test 21) 1000 cfm demon carb(81 primaries-91secondaries), timing at 20 degrees from 4000rpm on, 727 with cheetah trans brake and ati convertor built to match, Dana 60 4.10 gear spool. Ladder/leaf rear...