[CJ428CJ]

Keith,

390hp is pretty low for even a mild 427. I assume the hp continued to climb up through about 5500 or 6000rpm. Using desktop dyno for my 428, below are the numbers I came up with for a number of different cams. I found that going with too big of a cam caused the hp and torque numbers dropped way off. I didn't even include these higher lift/duration cams on my spreadsheet. This table may be a bit hard to read since it won't format well on this post. I'd be happy to email it in Excel or Word to anyone that wants it.

Chris

# Mfg Part No. Type HP @RPM Torq @RPM Lift(Int/Ex) Dur Dur@.05 Sep.
1 Crane 349521 Hyd-Rol 526 6000 534 4500 .584/.607 284/290 222/228 110
2 Comp 33-781-8 Sol-Rol 526 5500 506 4500 .645/.645 292/292 248/248 110
3 Crane 349541 Hyd-Rol 510 6000 471 4500 .632/.655 300/308 238/246 112
4 Crane 341191 Solid 504 5500 525 4000 .563/.587 300/310 238/248 114
5 Crower 16462 Sol-Rol 502 5500 573 3000 .580/.582 280/288 234/244
6 Comp 33-245-4 Solid 500 5500 519 4500 .571/.571 282/282 236/236 110
7 Lunati 40508 Sol 495 5500 513 3500 .525/.525 290/300 241/251 108
8 Crane 340471 Solid 490 5500 513 4500
9 Comp 33-246-4 Solid 489 6000 492 4500 .605/.605 294/294 248/248 110
10 Lunati 20501 Sol 489 5500 516 4500 .524/.524 324/324 245/255 114
11 Crane 340321 Solid 485 5500 518 4000 .524/.524 244/244 114
12 Comp 33-312-4 Hyd 483 6000 481 4500 .570/.560 286/292 108
13 Crane 343801 Hyd 477 5500 499 4500 .548/.580 278/290 222/234 114
14 Crane 344621 Hyd 475 6000 461 5000 .554/.563 296/300 234/238 112
15 Lunati 30507 Hyd 475 5500 485 4000 .563/.600 280/290 230/240 108
16 Crower 16357 Solid 472 5500 530 4000 .530/.535 278/284 240/243 114
17 Comp 33-315-4 Hyd 471 5500 491 4500 .570/.560 286/292 110
18 Comp 33-314-4 Hyd 469 5500 501 4000 .560/.560 280/288 110
19 Lunati 00054 Hyd 468 5500 490 4500 .554/.554 292/292 230/230 109
20 Crower 16331 Solid 468 6000 496 4000 .551/.565 290/298 247/252 108
21 Comp 33-317-4 Hyd 467 6000 476 4000 .560/.590 292/296 110
22 Comp 33-230-4 Hyd 465 6000 502 3500 .530/.530 280/280 110
23 Comp 33-316-4 Hyd 465 6000 459 4500 .590/.590 296/305 110
24 Comp 33-310-4 Hyd 462 5500 507 3500 .550/.550 276/284 110
25 Comp 33-240-3 Hyd 460 6000 482 4500 .560/.560 292/300 111
26 Isky 351281 Hyd 458 5500 493 4000 .565/.565 232/232 108
27 Crane 343801 Hyd 457 5500 500 4000 .537/.537 288/288 226/226 112
28 Crower 16255 Hyd 456 6000 500 3000 .549/.550 280/288 224/232 108
29 Crane 344561 Hyd 453 5500 470 4000 .572/.572 236/236 108
30 Edel 7106 Hyd 453 5500 470 4000 .572/.572 296/296 236/236 108
31 Crower 16241 Hyd 451 5500 509 3500 .538/.552 280/286 222/228 112
32 Comp 33-241-3 Hyd 448 6000 436 4500 .580/.580 305/305
33 Comp 33-519-3 Hyd 446 6500 420 4500 .580/.580 306/306
34 Isky 351271 Hyd 443 5000 511 3000 .542/.542 280/280 232/232 108
35 Crower 16356 Solid 432 5000 543 3000 .526/.537 260/266 228/228 114