What cam to use in a 318

Pretty good is correct. LSA at 110° is just slightly wide. I would order the cam with 108° LSA. If using LA heads with shaft rockers, I would get 1.6 ratio roller rockers for the intakes. 1.5 roller for the exhaust.
I would seriously consider the Chev LS valves that are 1.9" I and 1.55 E. To do this you need 8mm guides. You could use the Chev powdered metal guides or step up to bronze guides. You can use the Chev beehive springs, retainers and locks.
The Chev intake valve is about 95gm instead of the Mopar 129gm. Then the retainers and locks are slightly lighyer and the upper end of the springs is lighter. This provides better valve control. Also consider 40° exhaust seats for quicker low lift blowdown.
Why more lift on the intake