That is why only one of the Digital MSD boxes is legal in NHRA competition.
The Matty setup is near worthless these days, the 4-step could be of some use though.
http://www.mattyinnovations.com/
Davis Technologies offers wireless traction control system for their distributors, but an HEI looks real out of place on a bracket car, maybe not so much on a Stocker or Super Stocker.
http://moretraction.com/
Now go hunt witches!!!!!
