Chassis Tuning

While traction and converter have a lot to do with 60' times, you can't forget about the carb. MPH seems good, but a lot can be hiding in the carb. Jet for MPH, squirters & pump cams for 60'.

* Is the squirter size too big (rich) or too small (lean) off the line?
* Is the duration of the squirt too long (gets rich) or too short (goes lean) before the main circuit takes over.
* Do both primaries & secondaries stop squirting at the same time to keep the A/F ratio consistent in the cylinders.

Naturally, the car has to hook consistently to see differences in any mechanical changes. Weather changes between runs or visits to the track also has to be considered, as well as what you are doing. (Launch rpm, shift points, water temp, etc.) No easy answer to tuning. Just gotta learn/know what the carb is doing and how your changes affect it. But I learned a lot with a playback tach, a lot of which wasn't what I "perceived" during a run.

Adding weight with a battery or legal & safely mounted ballast can help consistency by reducing spin. Will come in handy X2 if you get faster consistently but want to stay in the 12's.