Over the course of 13 dyno pulls, Kevin and Jeff did the usual tuning with jets, valve lash, and timing. In the end, No. 97 jets square, 0.030/0.020 valve lash, and 31.5 degrees timing produced 650.4 hp at 6,300 and 596 lb-ft of torque at 4,900 rpm. We learned during tuning that advancing the timing past 32 degrees had a detrimental effect on power and the heads made peak power with 31.5 degrees of total timing. More power may be possible with more tuning, but dyno time was at a premium. Nevertheless, the mission was accomplished.
On The Dyno In the dyno cell,...
On The Dyno In the dyno cell, the timing is checked on the 463 before a pull is made.
An MSD Pro Billet distributor...
An MSD Pro Billet distributor featuring a TIP prototype polymer distributor gear, locked out mechanical advance, and Taylor wires handle the spark.
The TIP crank mandrel drive...
The TIP crank mandrel drive system is mounted to the Professional Products SFI balancer and is used for driving belts and running the Moroso four-vane enhanced vacuum pump.