I want to cool my roots blower with a pair of N2o plates added to the exsisting 1 inch spacer,that did not work as the blade on the SV1 comes out a little more than 2 1/4 inches under thecarb base.I would need a 2 1/8 spacer that patrick says it too much and suggested the perimeter plates.They are well over $300 each! I m thinking a fogger nozzle in each spacer,just have to find out if one per carb is or do I need 2 per