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

Purchased this Dart with a 440 with a Mopar purple for idle to 5,800 (as per the engine shop). Was thinking of going with something to get me into the 6-6,500 range. I know that will sacrifice a smooth idle and depends on heads and valve train. Specs on head and valve-train when I bought them are:
915 heads port and polished,
105# at installed height 1.80
300# at 1.25 .550 lift
coil bind 1.10
good to .600 lift
I an not an expert on these calculations. Any suggestions as to what would work best to get me into a higher rpm zone? Purpose = street and informal timing at airport strip.


I'll give you 2 cams i've run in my 440's that have mild idles and peak at 5,800 and 5,900 respectively on the same dyno.

[email protected], .557 lift, 112LSA Mild idle. Made peak power at 5,800RPM 467hp, 514ft. lbs.

[email protected], .650 lift, 112LSA Medium idle. Peak power at 5,900RPM 602HP, 575ft/lbs