Plus, whos to say its going to run that much better? Think of dallors per hoursepower gains! What else could be done for $5000, you can do alot of work to castiron head for that kind of money, plus the intakes and exhaust are all ready to go. Just because it flows 400cfm doesn't mean its going to work with your engine. You need a head that is adaptable to differnet engine combinations, so starting with a smaller port and less air flow will let you increase the volume and flow as needed. Starting out at full race spec's is a sure way to slow down 90% of the cars you put them on!
