The stock 360 with flat top pistons will be around 8:1 compression and will want a more mild cam than the one that you picked... Too much overlap will lower your cylinder pressures and you don't have much compression to compensate...
I would run in the 270° - 285° duration range with that engine... And use Rhoades lifters...
Also keep in mind to look at cam overlap (where both intake and exhaust valves are open at the same time on the same cylinder) and lobe separation (how far apart the intake lobe center line is to the exhaust center line)... Lobe separatiion determines overlap... Most cam manufacturers will list lobe separation and not give overlap...
The cam that you picked has a 107° lobe separation... You can get some cams with a 110° - 114° lobe separation which will have less overlap and will give more cylinder pressure... Overlap bleeds cylinder pressure... The lower the number for lobe separation, the higher the overlap... The higher the lobe separation, the less overlap and smoother idle and higher cylinder pressure you will have... You will loose that rough lumpy idle that you are desiring, but your car will run better and faster with the lower overlap with the compression that you will have on that 360...
