Yes it is too much. If you want to run up to 5800 rpm, Comp Cams Xtreme Energy XE262H or XE268H grinds may be just what you need. Both work with stock torque converter. A slightly rough idle with either cam. The 262 has a power range of 1300-5600 rpm and the 268 has a power range of 1600-5800.

Specs: XE262H
Lift: In .462 / Ex .469
Duration at .050": 218 / 224
LSA: 110

XE268H
Lift: .477 / .480
Duration at .050": 224 / 230
LSA: 110

They make a XE274H grind that would also be acceptable but requires an aftermarket torque converter of atleast 2200 rpm stall and makes only 11-14 inches of vacuum at idle which is hardly sufficient for power brakes. I will be running the XE256H in my truck very shortly.

Here is a link to some dyno sheets of various comp cams: http://www.compcams.com/Technical/DynoSheets/