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Registered Member
Join Date: Apr 2000
Location: middleburg, fl, usa
Posts: 1,134
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![]() MM& FF did an article on this a few years back and dynoed a lightly modded mustang with both unequal and equal shortys and the equal shortys had 2 hp more that the unequal and said they were not woth the extra hassels but did say that the story might be different on a highly modded mustang. I would and did go with the long tube headers.
1 5/8" on a lightly modded mustang and 1 3/4" on a heavy modded, nitrous injected, or blown mustang.
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James Cox RHC Member #44 nochevy@hotmail.com 1991 Mustang LX Dart iron eagle block, 4340 28oz 347 crank, 4340 h-beam rods, probe ultra light pistons canfield heads “race ported by Brent Frazier”, solid roller cam and lifters “custom grind”, kooks 1 7/8" race headers, and much more. Engine built by Brent Frazier. |
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