Dyno Results
Chevrolet 421 Small-Block
DTS Engine Dyno Tested At Dr. J’s

RPM TQ HP
3,000 451 257
3,100 466 275
3,200 482 294
3,300 493 309
3,400 506 327
3,500 520 346
3,600 532 364
3,700 541 381
3,800 547 396
3,900 554 412
4,000 560 426
4,100 566 442
4,200 571 456
4,300 574 470
4,400 576 482
4,500 577 495
4,600 581 509
4,700 584 522
4,800 589 538
4,900 593 553
5,000 596 568
5,100 596 579
5,200 596 591
5,300 595 600
5,400 592 609
5,500 590 618
5,600 587 626
5,700 583 632
5800 583 644
5,900 580 651
6,000 579 661
6,100 573 665
6,200 569 672
6,300 563 675
6,400 557 679
6,500 549 679
6,600 543 682
6,700 531 677
6,800 519 672
6,900 506 665
7,000 494 658

Cylinder Head Airflow
SuperFlow 600 Flow Bench
Dr. J’s AirWolf 220
2.125 intake; 1.600 exhaust; cfm at 28-inch water depression

Lift Intake Exhaust
0.100 78 65
0.200 155 116
0.300 217 162
0.400 266 196
0.500 302 219
0.600 320 233
0.700 325 244
0.800 328 252
0.900 331 257
1.000 333 260

SOURCE
CP Pistons
1902 Mc Gaw
Irvine
CA  92614
949-567-9000
www.cppistons.com
Dr. J's Performance
436 S Montgomery Street
Orange
CA  92868
714-808-9780
www.j-performance.com
Professional Products
12705 South Van Ness Avenue
Hawthorne
CA  90250
323-779-2020
www.professional-products.com
Mahle Motorsports
Fletcher
NC
888-255-1942
www.mahlemotorsports.com
Manley Performance Products
1960 Swarthmore Avenue
Lakewood
NJ  08701
732-905-3366
www.manleyperformance.com
Callies Performance Products
901 South Union St
Fostoria
OH  44830
419-435-2711
www.callies.com
Moroso Performance Products
80 Carter Drive
Guilford
CT  06437
203-453-6571
http://www.moroso.com/
Dart Heads
353 Oliver Street
Troy
MI  48084
248-362-1188
www.dartheads.com
Federal-Mogul
26555 Northwestern Hwy.
Southfield
MI  48034
248-354-7700
www.federal-mogul.com
Comp Cams
3406 Democrat Road
Memphis
TN  38118
800-999-0853
www.compcams.com
Meziere Enterprises
220 S. Hale Ave.
Escondido
CA  92029
800-208-1755
www.meziere.com
Melling Engine Parts
2620 Saradan Dr
PO Box 1188
Jackson
MI  49204
517-787-8172
www.melling.com
Automotive Racing Products
1863 Eastman Avenue
Ventura
CA  93003
800-826-3045
www.arp-bolts.com
Holley Performance Products
1801 Russellville Rd.
Bowling Green
KY  42101
270-781-9741
www.holley.com
Cloyes Gear And Products Inc.
Ft. Smith
AR
479-645-1662
www.cloyes.com
MSD Performance
1350 Pullman Dr., Dock #14
El Paso
TX  79936
915-857-5200
www.msdignition.com
HVH (High Velocity Heads)
710 John Sevier Hwy.
Knoxville
TN
Isky Racing Cams
16020 S. Broadway
Gardena
CA  90248
323-770-0930
www.iskycams.com