the modular motor kinda suck. all you could do with them is bolt-ons mainly. the 5.0 would be a better pick to mod down the road. the stock heads on the 5.0s suck and stock they only make 220 hp to the crank. im sure with some bolt-ons and gears tho you could do 13's pretty easily. if my brother ever installs his edelbrock high rpm intake manifold ill let you know how much of a differece it makes, but most of the time you dont really see any real gains till you swap heads.
you can find some decently moded ones in the 5k range. parts are dirt cheap for them too. i would look into it.
