Just joined this forum have been reading on it for a few days seems you guy's are very helpful and patient, what are the differences between Headman 3 tube and 4 tube headers, flow,torque,etc running a 455, mild build Thaks for the info...Randy
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1968 Bird
455 .30 over
Jones custom grind cam
350 turbo with 4000 stall
12 bolt 355
sub frame conn
Old school two pcs Center lines with BF drag Rad
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