Best flowing big block heads?

StrokerScamp said
Rob, is there a decent out of the box head for a "moderate" 451 build? I would like some alloy heads, but I don't want to end up spending 3K on heads including making them work. Thanks.

HP level makes all the difference.

RPMs and stealths work good for 550-600 and less without much work.

You'll still be in them at least 2K by the time you get them set for a 600 lift solid cam and flowing decent.