A little better. Basically just clean up, correct valve job, good springs and valves. IMO any head that doesn't flow "amazing" doesn't sell any better. Eddys don't without some pretty porting, and with our street cam profiles, the cost to the consumer doesn't translate. In my opinion of course. What's 10 cfm at 600 lift when we use 549 lift cams. And gain 7 hp vs ootb. It's more piece of mind and proper procedure for us.
