PAT sounds like you'v done this a time or to,Hay MAGEMAN good choice on the Aluminum Heads you will loose a lot of weight staying away from the cast heads.I would go with the BRODIX Heads instead of EDELBROCK but thats just my preferance.I went to BBL longgggggg time ago wont tell all my secrets but will tell you get the RECTANGLE-PORTS not the OVAL-PORTS..By the way pat good advice to MAGEMAN.