pistons

I am building a street/strip 340 that will run n2o 150 200 shot
I have 2 sets of pistons 1 set is a flat top cast the other set is a hi dome forged set with dykes rings do you think the dykes rings will seal ok on the street? I also have both cast and forged cranks but need damper for forged
can the cast crank live with that much n2o?
any other suggestions? thanks
MOPAR OR NO CAR!!!!!!!! :twisted: