This is a pretty common question, and from your second post it sounds like you are on the right path.
My personal preference would be AFR165s because they're just a bolt-on for you. Easy to install... no flycutting of the pistons, and they'll probably make more low-end tq because of the higher port velocity. Your E303 cam is a nice sounding cam, but you're leaving power on the table. Consider getting a cam from one of the many custom cam guys like Ed Curtis, Buddy Rawls, etc...
Since you've already got a TFS manifold, you should also consider TFS Twisted Wedges. That's an excellent head that you will never outgrow. You can simply port this head out to accommodate a larger displacement motor such as a stroker or 351 W. You start off a little cheaper with TWs, but upgrading the valve train to match the AFRs brings you pretty close in price.
Either way you will not go wrong, and you will be happy with your results.
Chris
My personal preference would be AFR165s because they're just a bolt-on for you. Easy to install... no flycutting of the pistons, and they'll probably make more low-end tq because of the higher port velocity. Your E303 cam is a nice sounding cam, but you're leaving power on the table. Consider getting a cam from one of the many custom cam guys like Ed Curtis, Buddy Rawls, etc...
Since you've already got a TFS manifold, you should also consider TFS Twisted Wedges. That's an excellent head that you will never outgrow. You can simply port this head out to accommodate a larger displacement motor such as a stroker or 351 W. You start off a little cheaper with TWs, but upgrading the valve train to match the AFRs brings you pretty close in price.
Either way you will not go wrong, and you will be happy with your results.
Chris