340 Cam Comparison

I'm hoping to get my 340 back together this fall for install next year when the body is ready. I'm mulling over my cam options. This will be an interim motor while I work on a 416 stroker. I have an XL275HL

Duration at 050 inch Lift: 231 int./237 exh,
Lift 0.525 int./0.525 exh. @1.5 ratio
Advertised Duration:275 int./287 exh.,
110 lobe separation

that would probably work pretty well but I would rather have a solid lifter cam. Thinking about the MP 284 .528 cam. It's got more duration but is equal int/exh.

P4120653
Duration at 050 inch Lift:241/241
Lift .528/.528 @1.5 ratio
Advertised Duration:284/284
112 lobe separation

My main concern is if that MP cam will push the torque/HP peaks up and how the 112 lobe separation affects it all vs the 110 of the other cam. I'm not going to be drag racing much at all, but will be doing auto-x/road course so low/mid range torque are important. Decent street manners are required too. I don't want to have to slip the clutch at 3000rpm to get it moving. I noticed in one list of MP cams that the oval track cams seem to have a narrower separation compared to most of the drag race oriented cams.
Mopar - Mechanical Camshafts FOR "A" Engines
The rest of the combo. ~3600lbs, 3.55 gear, 4spd with 2.66 first gear, stock bore '71 340 with fresh hone, new rings/bearings and stock pistons .025 above deck. ProMAXX 171 heads that flow peak of ~250cfm at .500-.600" lift, RPM Air Gap, 273 rockers or more lift with PRW 1.6 rocker, 750-850cfm carb, Hooker 1 3/4" headers, 2.5" full exhaust. I'll pick a head gasket to get .035-.040" quench on the 63cc closed chamber heads.