| Dyno Results |
| Tunnel-Ram | Single-Quad |
| RPM | HP | TQ | HP | TQ |
| 4,000 | 279.5 | 365.2 | 279.7 | 364.5 |
| 4,500 | 339.2 | 393.8 | 328.1 | 379.3 |
| 5,000 | 410.2 | 429.5 | 397.9 | 413.9 |
| 5,200 | 423.6 | 429.7 | 414.7 | 420.2 |
| 5,300 | 431.1 | 428.1 | 429.3 | 424.3 |
| 5,500 | 444.7 | 424.4 | 434.6 | 414.6 |
| 6,000 | 485.7 | 422.4 | 468.7 | 408.9 |
| 6,500 | 505.8 | 409.2 | 491.8 | 397.0 |
| 7,000 | 529.3 | 396.1 | 513.0 | 383.4 |
| 7,100 | 531.5 | 392.6 | 512.6 | 380.0 |
| 7,300 | 525.0 | 376.4 | 463.9 | 333.9 |
The CombinationOur '68 Barracuda is packing a 340 between its framerails. Admittedly, a 13.6:1 test engine is on the extreme end of the "street" scale, but what better to test the limitations of an intake with than a high-rpm, high-compression power plant? The combo is as follows:*'69 340 ci plus 0.040 overbore (346 inches)*Arias forged pistons, 13.6:1 compression*Block half filled with Moroso Hard Block*Eagle I-beam connecting rods*Stock forged-steel crankshaft*Comp solid flat-tappet cam, 263/268 @ 0.050-inch valve lift, 0.640/0.640 after lash*Mopar Performance W-2 iron cylinder heads, ported, 2.02/1.60 valves*Crane 1.6:1 roller-rocker arms*Smith Brothers custom-length pushrods*TTI 171/48-inch headers with TTI 3-inch mandrel-bent exhaust system with Goerlich 3-inch welded mufflers *Mallory HyFire VI digital ignition*MSD billet mechanical-advance distributor*Milodon oil pump and pickup*Milodon 7-quart oil pan