main caps or grouting

I am in the process of building a 393 clevo with solid cam (not decided on specs as yet but over 600 lift)12 to 1 comp afd 2v heads tfc manifold pro form 950 carb, my main concern is what to do with the block, its haveing main studs, do i grout it,or 4 bolt main caps, its mainly going to be street driven, it has 4340 eagle crank, eagle rods, srp pistons,