Originally Posted by
BLbound
Good Job Cameron! That's another thing I'm going to try this coming weekend is a 5.5 540...I originally bought it for this truck but got kinda scared and also bought a 4.5 550. I also have a couple guys at my local track that run a 5.5 540 in thier durangos and they are the fast guys in the class, so I'm going to give the 5.5 540 a shot this weekend, thanks for reminding me!
I run zero speedo timing and another -5 on the motor. I would start with with motor timing as low as you can go with first. I was running a 14/93 for best performance. With a 16/93 the tires would lite up so bad that it would get loose on the straight! I do have a fan that blows on the motor also and helps keep the temps in the correct range.