440 Chrysler Dyno Test: Trick Flow Heads & Intake.
After a brief tuning loop to verify the optimal air/fuel ratio, a power pull was made, then backed up for verification. Power peaked a 561 hp (5,800 rpm) with torque peaking at 542 lb-ft (4,700 rpm). That’s a bit shy of TFS’s claim, but if nothing else, it does bear out the stingy nature of Westech’s Superflow dynamometer. Your results should easily match or improve upon ours, and this test should be considered the bare minimum you will get in a similar combo. Altogether, this is a budget-friendly combo that should easily propel the typical 3,400 – 3,600-lb Mopar into the high 11-second range using sticky rear tires.













