Cam upgrade for my truck, '72 D200 with a 360

And an added note about the cam's intended usage from the manufacturer: Very strong torque and increased HP for 273-360 c.i. motors. Compatible with stock type EFI. Works well for pleasure/ ski boats and mild towing applications. Advertised Duration (Int/Exh): 253/258 ;Duration @ .050 (Int/Exh): 208/213 ;Gross Valve Lift (Int/Exh): .454/.454 ;LSA/ICL: 112/108 ;Valve Lash (Int/Exh): Hyd/Hyd ;RPM Range: idle-5000

Somewhat ironically, the next-larger cam is actually advertised as being for heavy towing applications.
"Best mild performance cam. Works well in EFI applications with performance chip. Makes approximately 19" vacuum at idle. Great for performance marine and heavy towing applications. Great street rod cam. Slightly noticeable idle, works with stock converter, A/C, power brakes and stock springs in most cases.; Advertised Duration (Int/Exh): 256/262; Duration @ .050 (Int/Exh): 213/220; Gross Valve Lift (Int/Exh): .454/.475; LSA/ICL: 112/108; Valve Lash (Int/Exh): Hyd/Hyd; RPM Range: 1000-5500"

This larger 256/262 unit is the same cam I ran in a stock worn-out 318 and it was soggy on the low-end but put the same cam in that 10.5:1 360 I broke and the cylinder pressure was sky-high and pinged all the damn time.