391ci Small-Block - Tech - That's Solid

Dyno Details
Headers 1 3/4-to-1 7/8 Hooker Super Comp step headers
Fuel 91-octane

TEST 1
RPM	LB-FT	HP
3,500	471	314
3,600	470	322
3,700	469	330
3,800	467	338
3,900	468	348
4,000	471	358
4,100	472	368
4,200	471	377
4,300	469	384
4,400	464	389
4,500	460	394
4,600	456	399
4,700	450	403
4,800	443	405
4,900	436	407
5,000	430	410
5,100	423	411
5,200	416	411
5,300	407	411
5,400	398	409
AVG TORQUE		453
AVG POWER		339

* Holley carb 670-cfm (PN 90670)
* 68P/80S jets
* Power valve: 6.5
* Dual-plane intakemanifold
* Hydraulic roller camshaft with 217/225 degrees duration at 0.050 inch lift
* Advance: 36 degrees

TEST 2
RPM	LB-FT	HP
3,500	468	312
3,600	468	321
3,700	464	327
3,800	460	333
3,900	456	339
4,000	458	349
4,100	468	365
4,200	478	383
4,300	486	398
4,400	493	413
4,500	496	425
4,600	498	436
4,700	499	446
4,800	500	457
4,900	503	469
5,000	504	480
5,100	505	491
5,200	504	499
5,300	501	506
5,400	499	513
5,500	493	517
5,600	488	520
5,700	482	523
5,800	476	525
5,900	469	527
6,000	463	529
6,100	457	530
6,200	451	532
6,300	443	530
6,400	436	529
6,500	430	527
AVG TORQUE		477
AVG POWER		454

* Holley carb 950 HP
* 78P/78S jets
* Power valve: 6.5
* Holley Strip Dominator manifold
* Lunati solid roller cam
* Scorpion 1.6 roller rockers
* Advance: 36 degrees

TEST 3
RPM	LB-FT	HP
3,500	470	313
3,600	467	320
3,700	461	325
3,800	459	332
3,900	459	341
4,000	463	352
4,100	473	369
4,200	484	387
4,300	490	401
4,400	496	415
4,500	498	427
4,600	500	438
4,700	502	449
4,800	505	462
4,900	507	473
5,000	509	485
5,100	509	495
5,200	509	504
5,300	505	510
5,400	502	516
5,500	497	520
5,600	491	523
5,700	485	526
5,800	479	529
5,900	473	531
6,000	467	533
6,100	460	535
6,200	453	535
6,300	447	536
6,400	441	537
6,500	433	536
AVG TORQUE		457
AVG POWER		480