How many times have you gone up or down one jet size only to find no performance change whatsoever? You're not alone! MaxJets from Comp Cams are precision CNC machined for unbelievable consistency and better flow. Each jet is numbered according to the actual orifice size (a #79 has a .079'' hole). In flow testing, MaxJets had a standard deviation of + 0.5 gph on a jet that flowed 206 gph while a Holley jet varied more than 1.70 gph! MaxJets install easily with a nut-driver so there's virtually no chance of causing a flow-hindering burr or deformation like when insalling a standard jet with a screwdriver. MaxJet lets you tune with the ultimate precision for ultimate results!