350 streetrod rebuild

I'm rebuilding motor for my 66 Chevy PU. Would like opinions on best cam choices for my app. -- Prefer a noticeable idle but more concerned about performance over a broad range. Considering Comp 270H - 224 dur, .470 lift, 110 sep angle
Comp 268H - 218 dur, .454 lift, 110 sep angle
or Isky 270 Megacam - 221 dur, .465 lift, 108 sep angle
280 MegaCam - 232 dur, .485 lift, 108 sep angle
P.A.W. ISS also has one for about half the price with near same specs but sep angle is 114 unless I go to a much lower lift

Bore - .040 over
Stroke - Stock
Pistons - 4-relief flat top
Heads - late model '87-'93 cast iron (64cc?)
Intake - Edelbrock Performer
Carb - Q-Jet aftermarket mild performance
Exhaust - round-tube header, dual Cherrybomb glasspack, 2-1/2 in pipes
Tranny - 4 speed
Rear gears - 12 bolt probably stock, not sure

I called comp and isky and both were more than helpful!!They both asked alot of questions , told them exactly what my intended use was and they made good recomendations.

I took ShawnLee's advice and called P.A.W. then Comp Cams. Both were very helpful. I've ordered the Comp Magnum 270H.