Cam and Stall Convertor

If you aren't changing springs, put the biggest cam in it that the current ones will handle. If a 284/484 108lsa will go do that or an equivalent, put it in at 100-102. Cheap springs retainers locks are about $125.

The thmpr or the mutha thmpr would be good if the springs can handle it.

60403 Lunati is another that would be OK

Spend money on an 8" converter set up for you anticipated HP/TQ of your stroker engine.

Having a bunch of stall won't really hurt and the 318 won't make the torque of a stroker so it will tighten up.