You might want to try this...
120021 Howards, Camshaft, Chev BB, Hydraulic, F/T,
Howards, Camshaft, Chev BB, Hydraulic, F/T,
Lift: .476"/.502" Duration @ .050": 204/214 Lobe Center: 112 Exceptional low end torque. Good in PUs, 4X4s and RVs

Nice, simple hydraulic. Or this one...
120031 Howards, Camshaft, Chev BB, Hydraulic, F/T,
Howards, Camshaft, Chev BB, Hydraulic, F/T,
Lift: .505"/.525" Duration @ .050": 215/225 Lobe Center: 112 Great low and mid-range torque. OK in heavy vehicle

Dont make the mistake of over-camming the engine, you'll end up with a dog. The problem with a stock 454 is the low compression ratio, which limits cam choice. But even with those heads, you can still have a torque monster, and that's good on the street...it just wont be very good at the track, runs out of steam before you get the rpms up. But that's OK, you can build for that later if you want to. Give John or Scott a call at Howard's Cams, 920-233-5228, tell them what you want, and what you have to work with. For a carb and intake, you cant beat an Edelbrock Performer, and a Holley 750 vacuum secondary carb. (or Edelbrock if you prefer) Set up with lots of initial timing, (18) and limit the total timing to 38 or so. I think you'll be very happy. Might be a stock engine, but they have mega torque. John