I run Indy Sr 650s with a stage 11 port job by Indy.They are Max Wedge size on the inlets and according to the flow chart they flow 320.41 on the inlet and 250.60 on the exhaust.thats at .700 lift..Not saying you need to go that far for your set up,, but thats what is possible if you throw some money at them .Do they work??? oh yea