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Small Block Chevy Buildups - Three-Way Mousefest
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THE LOWDOWN
FLOW FIGURES
LIFT INTAKE EXHAUST
0.100 64 56
0.200 138 105
0.300 198 146
0.400 237 171
0.500 257 186
0.600 258 196
CFM at 28 inches H2O

CAMSHAFT SPECS
Manufacturer Isky Racing Cams
PN 201649
Grind Number RR-640/72-80
Type solid roller
Valve Lift 0.640/0.640-inch intake/exhaust
Duration at 0.050 272/280°
intake/exhaust
Lash (hot) 0.028/0.028
intake/exhaust
Lobe separation 106°

DYNO DETAILS
Headers 1 3/4-inch Hedman
long tubes
Advance 38°
Fuel 100-octane unleaded

950-CFM ULTRA HP
Jets 78/78 primary/secondary
Max torque @ rpm 481 @ 5,200
Max power @ rpm 539 @ 6,500
Average torque 442
Average power 443

355 PULLS
RPM LB-FT HP
3500 395 263
3600 395 271
3700 397 280
3800 405 293
3900 409 304
4000 413 314
4100 412 322
4200 424 339
4300 429 351
4400 440 368
4500 447 384
4600 456 399
4700 465 416
4800 469 428
4900 474 442
5000 478 455
5100 479 465
5200 481 477
5300 480 485
5400 479 492
5500 477 499
5600 473 505
5700 471 511
5800 469 518
5900 466 523
6000 461 527
6100 459 533
6200 454 536
6300 448 538
6400 439 535
6500 436 539
6600 429 539
6700 419 534
6800 411 532
6900 401 526
7000 385 514

Full Article
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