Guys...need some advice on jetting a 572 Hemi with a MP X ram intake and duall 770 cfm Holleys. Appn is street/strip.

Engine combo is :

572 Hemi - pump gas
Bryant Crank, Saenz steel rods
Diamond slugs 11:1 CR net
Indy heads 425cfm @ 700"
Bullet roller 265 @ .050" mid - high 600's lift
Mopar X ram with dual 770's
2.25" headers
Car weight 3450lbs

Im wondering what jetting/sec springs will be in the ballpark to run for inital setup before track tuning?

Also, has anyone run 1" phenolic 4 hole spacers under these carbs with good results on this intake ? I have the space to use them and not sure if they will help or not. Curious more than anything....

Any info would be much appreciated thanx fellas !