How do I go about doing a dyno tune for superchips with a 2# pulley on board without detonating? Im stock now, other than filter...and i want a custom tuned superchip...and im worried about doing the pulls with a pulley and no chip

 

I would either talk to JDM or JL for custom tuneing like that on a superchip.

But put the pulley on. Go out and test the truck. Play with it alittle. As soon as you hear detination let off. If you have detination, get some race gas and put it in the tank. Then go to the Dyno and get them to do a air/fuel trace. Then send all the dyno info to the tuner.