I would go with the redline over the quad box, but dont use the redline on the street, a 66mm turbo is just fine on the street, a little laggy but i have built several trucks with 66's that still get drove on the street and they do well. If you run the redline or quad adrenaline, deffinelty do valve springs. And with that turbo at least head studs, and think about fire ringing the head. I think for what you are wanting to do a cam would not be worth the money, put it somewhere else. A good twin disk clutch. on the injectors, i would go with 6 hole not 7 hole, they blow the tips off easier, go with a 6x18 or around there. Get a goo injection pump, have had good luck with the schied pump and industrial injection ones. If you take the head off and can afford it do a port and polish job. Get you some traction bars for sure, see if you can run suspension stops, weight bracket ect.. Make a good hitch for it and have fun. Sorry for the book! LOL