There has got to be a way to support 600 HP in stock port configuration and still have a nice venturi. As I said in post 235 the eddy's venturi sucks and it looks like the bloomers are relying on the seat to act as the venturi. Like your guy said the "appproach". What's the minimum you can get away with and still reap the benefits???? Mike, if you'd like come over sometime next week, I'll have my guy flow them and pickup the tab. And I'll remain tight lipped if that's the agreement your under for the time being.