I have a 1991 chevy 4x4. It has a 3 inch body lift and 315 buckshots. Very sharp truck. Im kind of in a bind in what to do with my 350. Ive taken it out because the crankshaft is making some noise and I was interested in trying to beef it up a little if I could. I would like to get some advice on what to do to a throttle body 350. Please try and help...

 

1.) Stroke it to a 383, 420hp for about $3-$4kk.
2.) Buy a ZZ4 350/350hp Crate motor and add your top end to it, removing the manifold, adding you TB setup; cost $1600.
You have so many options guy, start calling some online performance shops. You will soon find out one very important fact. When a gear head knows his sht, he can't wait to share it. In the world of gear heads, EGOs count as a plus
Hope that helps
Greek