Power steering - how to stiffen it up?

[rgunlock]

I'm finishing up on my 78 GMC K15 and I'm not real comfortable with the steering. I've tried searches, but my steering isn't loose, there is no slop in the wheel. It's just wants to respond to uneven pavement a little too easily.

I've rebuilt the column, new rag joint, original gear box (just cleaned and painted), all new stock replacement front-end steering and suspension components, etc. including the steering stabilizer. I have not yet had the front-end aligned (next thing on list) but it already tracks straight with slight trend to the right when on even pavement. The truck has 4 inch lift springs with the drop pitman arm, and 33" tires.

I'd like the wheel to give more resistance to leaving centered, and the truck to not try to self-steer past bumps and dips. So what am I looking for? A better steering stabilizer, or dual shock stabilizer? A gear box upgrade? Something else?

Thanks, Rick