Steve Turner
Former Editor, 5.0 Mustang & Super Fords
May 31, 2011

Stock Manifolds BBK Long-Tubes Difference
RPM Power Torque Boost Power Torque Boost Power Torque Boost
2,100 179.91 449.98 9.60 n/a n/a n/a n/a n/a n/a
2,200 191.90 458.15 9.51 n/a n/a n/a n/a n/a n/a
2,300 205.87 470.13 9.68 n/a n/a n/a n/a n/a n/a
2,400 221.32 484.36 9.90 n/a n/a n/a n/a n/a n/a
2,500 235.41 494.58 9.88 240.45 505.23 9.18 5.04 10.65 -0.70
2,600 249.22 503.46 9.77 254.49 514.15 8.85 5.27 10.69 -0.92
2,700 263.90 513.37 10.19 266.16 517.81 8.98 2.26 4.44 -1.21
2,800 275.74 517.26 10.54 278.91 523.24 9.85 3.17 5.98 -0.69
2,900 289.56 524.45 10.60 293.66 531.92 10.32 4.10 7.47 -0.28
3,000 304.02 532.28 10.55 308.37 539.96 10.43 4.35 7.68 -0.12
3,100 318.15 539.05 10.70 324.18 549.32 10.48 6.03 10.27 -0.22
3,200 330.62 542.67 10.85 336.87 552.99 10.47 6.25 10.32 -0.38
3,300 343.51 546.74 10.78 350.01 557.15 10.47 6.50 10.41 -0.31
3,400 356.34 550.49 10.58 357.26 551.96 10.43 0.92 1.47 -0.15
3,500 371.03 556.80 10.56 372.50 559.07 10.36 1.47 2.27 -0.20
3,600 383.07 558.91 10.70 387.28 565.12 10.26 4.21 6.21 -0.44
3,700 396.17 562.39 10.75 402.17 570.98 10.12 6.00 8.59 -0.63
3,800 407.51 563.28 10.54 420.24 580.94 10.02 12.73 17.66 -0.52
3,900 419.71 565.27 10.32 431.02 580.57 10.08 11.31 15.30 -0.24
4,000 428.50 562.67 10.34 437.17 574.13 10.21 8.67 11.46 -0.13
4,100 435.11 557.42 10.36 449.98 576.55 10.05 14.87 19.13 -0.31
4,200 443.98 555.24 10.41 460.94 576.53 9.70 16.96 21.29 -0.71
4,300 454.96 555.74 10.47 472.57 577.34 9.48 17.61 21.60 -0.99
4,400 462.06 551.59 10.54 480.95 574.22 9.68 18.89 22.63 -0.86
4,500 472.87 551.95 10.04 492.09 574.47 9.89 19.22 22.52 -0.15
4,600 482.91 551.42 9.55 495.95 566.39 10.03 13.04 14.97 0.48
4,700 487.35 544.64 9.58 503.37 562.64 10.22 16.02 18.00 0.64
4,800 499.26 546.33 9.97 514.77 563.40 10.50 15.51 17.07 0.53
4,900 508.97 545.59 10.13 521.49 559.10 10.80 12.52 13.51 0.67
5,000 519.34 545.58 10.11 527.09 553.82 11.01 7.75 8.24 0.90
5,100 526.42 542.17 10.64 535.61 551.73 10.68 9.19 9.56 0.04
5,200 531.93 537.32 11.61 546.02 551.65 10.42 14.09 14.33 -1.19
5,300 539.20 534.38 11.30 551.54 546.72 10.26 12.34 12.34 -1.04
5,400 548.36 533.40 10.23 556.33 541.25 10.13 7.97 7.85 -0.10
5,500 551.05 526.27 9.59 565.12 539.82 10.55 14.07 13.55 0.96
5,600 558.79 524.14 9.39 571.41 536.09 11.26 12.62 11.95 1.87
5,700 565.55 521.17 10.02 578.21 532.95 11.20 12.66 11.78 1.18
5,800 579.28 524.62 10.48 585.34 530.23 10.81 6.06 5.61 0.33
5,900 576.95 513.66 10.85 587.74 523.39 10.81 10.79 9.73 -0.04
6,000 596.03 521.80 11.20 597.42 523.14 10.77 1.39 1.34 -0.43
6,100 586.58 505.12 11.43 600.85 517.54 10.89 14.27 12.42 -0.54
6,200 584.80 495.47 10.98 605.52 513.14 11.29 20.72 17.67 0.31
6,300 594.00 495.27 11.25 611.36 509.88 11.86 17.36 14.61 0.61
6,400 598.92 491.58 11.56 614.06 504.14 11.78 15.14 12.56 0.22
6,500 610.65 493.49 11.87 615.43 497.50 11.21 4.78 4.01 -0.66
6,600 617.15 491.20 11.99 621.82 495.05 10.02 4.67 3.85 -1.97
6,700 612.57 480.28 11.89 619.64 485.97 9.50 7.07 5.69 -2.39
6,800 616.03 475.89 11.55 626.21 483.90 8.88 10.18 8.01 -2.67
6,900 621.02 472.79 10.99 632.48 481.67 8.51 11.46 8.88 -2.48
7,000 627.16 470.65 10.58 633.71 475.72 8.92 6.55 5.07 -1.66
7,100 623.50 461.32 9.73 639.15 473.05 9.35 15.65 11.73 -0.38