I put the entire trick flow package on the #64 last week. End result, 317 HP 297 TQ. Of note, the fuel injectors are critically undersized at 24 pounds, so run the fuel pressure up to 60psi (not a joke) and start from there. Don't run the car hard without having it on a dyno with the air/fuel being monitored or its likely you will run it lean and blow it up. Mine liked 14 degrees of initial timing best and my final fuel pressure was 60psi.

At Sebring, which is a long, flat power track, the car was roughly 4 seconds a lap faster than the old stock challenge racer, and I was doing it with old beat up tires. The new challenge racer will roll by American Iron cars like they aren't there.

-Scott