W2s like rpm so the shorter stroke may be beneficial. And they like lots of duration and lift
7800 rpms is not uncommon . .
Solid roller is the way to go .
Get a custom grind from Jones or Bullet or research other successful combos. W2 facebook page will be a good resource .
A mild port job really wakes them up . If you have abilty get a set of Mopar templates . There is a guy that reproduces them out of thick plastic on W2/W5 Facebook page .