Wondering if anybody used these and what kind of experience they had with them? My boats headers i think are running a little more wet than they should be, i'm just looking to get it perfect. I'm thinking about buying a set of these and just drilling them out if i need more flow.
hole is 0.125"
Please dont say install a gate/ball valve, i know thats what alot of you do, i'm not looking to go that route.