440 Camshaft recommendations for up to 6-6,500 rpm?

I don't know if the OP is seeing this trend so i'll point it out. Quite a few guys here have said their 440's will pull past 6,000 but run better when shifted earlier or they peaked on the dyno in the high 5's or about 6k.
Yep, and the majority that said their 440 will pull that....have solid lifter cams.