The one you can trust to build what you want and from recommendations from other people---I would recommend Craft because of first hand experience.I had him build my FE stroker based on how much horse power I wanted and he picked the parts/heads/intake etc.(489/871hp@7800)
He made my ports smaller(dove HR ports(filled to MR size)and have see some cj heads he has done for super stock 428 that the intake and exhaust ports are filled(raised).He would probly recommend stage 1 to your heads.So call him and the others that were posted and then make your choice.
Hope this helps,
Roger Arens
Edmond Ok
http://www.midamericafordmeet.com/im...789-R1-17A.jpg