mech Roller vs Mech flat tappet cam Q

Thanks MOPER!!
I am going to stick with a solid 249 Dur 570 lift and 107 LSA custom grind for my road racer application.
The Cam Man said the same thing for an endurance non hassle application like road racing to stick with a mech flat tappet cam in the RB block-SAFE.For racing applications the RB block should be modified to handle a Mech Roller all out

Plus I will Have my heads and manifold ported
I was ready to spend alot more money with a mech roller set0up! Cool there still are companies that put good advice before maximizing profit
(DIAMONDBACK RACING and engines) ALL MOPAR ALL THE THE TIME

Thanks Guy's!