All in all, there was a great deal of power to be found by matching the carb size to the engine's actual requirements rather than the equation. From the smallest to the largest, there was a full 45hp range in output-enough to really feel the difference or to win or lose a race. While bigger isn't always better, if you've got the motor enough to back it up, it usually is.

DYNO RESULTS
SUPERFLOW 901 ENGINE DYNO
TESTED AT WESTEC
TORQUE
RPM 625 650 750 850 950 950/sp
3,000 NR 485.7 487.2 487.5 NR NR
3,500 NR 515.5 518.8 523.0 541.1 544.7
4,000 533.3 537.3 540.7 543.9 550.2 554.2
4,500 539.7 546.4 552.5 555.4 563.8 568.5
5,000 527.1 535.8 541.6 549.7 556.3 557.4
5,500 501.2 514.0 518.9 528.4 531.4 537.6
6,000 458.0 475.1 483.3 488.7 495.0 500.5
6,500 443.9 445.4
HORSEPOWER
RPM 625 650 750 850 950 950/sp
3,000 NR 277.4 278.3 278.5 NR NR
3,500 NR 343.5 345.7 348.5 360.6 363.0
4,000 406.2 409.2 411.8 414.2 419.1 422.1
4,500 462.4 468.1 473.4 475.9 483.1 487.1
5,000 501.8 510.1 515.6 523.3 529.6 530.6
5,500 524.8 538.2 543.4 553.3 556.5 563.0
6,000 523.2 542.7 552.1 558.3 565.5 571.8
6,500 549.4 551.4
LEGEND
625 Road Demon 625 vacuum secondary with choke
650 Speed Demon 650 vacuum secondary with choke
750 Speed Demon 750 mech. secondary without choke
850 Speed Demon 850 mech. secondary without choke
950 Race Demon 950 annular booster drag race
950/SP Race Demon 950 annular booster drag race with 1-inch space
SOURCE
Competition Cams
Memphis
TN
8-00/-999-0853
compcams.com
Mopar Performance
Mopar.com
Demon Carbs
706-864-4712
www.barrygrant.com
Tube Technologies Inc.
909-371-4878
www.ttiexhaust.com
Edelbrock Corp
2700 California St
Torrance
CA  90503
310-781-2222
Westech Performance Group
11098 Venture Dr., Unit C
Mira Loma
CA  91752
9-09/-685-4767
www.westechperformance.com