L. This rule applies to fuel injected motors:
OEM fuel injection only. Fuel injection may not be modified in any way from it's original OEM specifications. OEM ignition systems only. No after market fuel injection allowed. After market boxes that adjust Fuel Curve, Timing and RPM only, are allowed. The only boxes that are approved are the Dyno jet 2,3,and 3R.The Dyno jet 3 with the USB is allowed with no external modules plugged in. Any boxes of this type, other than those specified, must be pre-approved by Pit Steward, 30 days prior to the event. Any car that is discovered to have any other electronic devices other that those outlined above, or who has made any modifications to these allowed boxes, will be disqualified.

The following rules go into effect beginning the 2007 Racing Season: Fuel injected
1.Engines must have stock bore and stroke with no more that 1 mil. over bore over the original factory specifications for the engine manufacturer.
2.Unmodified OEM cylinder heads only.
3. Cam-shafts must have stock lift and duration, adjustable cam sprockets are allowed.