I've got a 71 f 250 CS with a 390, 2 bl, and a C6 trans. It has headers and dual exhaust. When the shop installed the headers they didn't install a crossover or equalizer pipe to link the dual exhaust together. Some people I've asked say "ya gotta have it" and others tell me it's no big deal, so I'm coming to you guys to ask for help. Is it important or not?
Thanks,
Bill