360 cam upgrade selection

I'm in the market to change cams in my motor. I have a stock rebuild bottom end 360, 587 J heads cut .040", standard Felpro head gaskets. 901 Comp springs 3 angle valve job, port matched. It has a cold cranking compression test of 155# cold. Weiand Action Plus intake 670 Holley. Trans is a 727 with a B&M 3000 holeshot converter into a 3.55 SG rear. Currently my cam is a Crane .454" 216*. It runs good, but not enough.
I am toying with the Comp purple plus 280/.474, 284/.484, good 'ol 280/.480 and the Lunati Streetmaster 285/.507
http://www.summitracing.com/parts/cca-20-670-4/overview/make/dodge
http://www.summitracing.com/parts/cca-20-671-4/overview/make/dodge
http://www.summitracing.com/parts/lun-10200302/overview/make/dodge
I am really leaning towards the purple plus grinds. What are your thoughts?