thats going to make your truck borderline not a daily driver lol, do they even make turbo kits for gmt 400s, ive seen people turbo them but they make there own manifold
no less a daily driver than it is with a blower on, I'm not going to run tons and tons of boost. just around 8-10psi max. when I need to do a engine rebuild I'll do a forged bottom 383 and bump up the boost.
its not a kit that I'm using, I think the banks TT SBC universal kit is the closest to a 'kit' that would work on our trucks. I've seen homemade headers too, and they can be pretty good, but since its my daily driver I'm using actual cast manifolds which are quiet, will not crack or have any problems supporting the weight of the turbos, and they're really compact.