Just a 284-484?

I have noticed the Purple cams a bit shy on lift. I don't think it's a "need more lift" issue. Maybe to match the flow potentail of the ported head on top! But otherwise, the cams lift works well with, well preped heads and/or bowl ported heads. Fully ported units need not apply till much later in there cam group selection. Otherwise, the added cc amount of the runners are just going to slow things down. (Air speed)