Lots of Resistance When Turning Hard

[burlapen]

Hey Guys!
Finally getting my truck out for some test drives after a frame off. It's a 63 longbed that I converted to short. It has a 5.3 and T56 manual. I used the front crossmember, suspension and disc brakes from a 72 c10. When I put the chassis together I measured the toe the best I could with a tape measure. The truck still had a lot of rolling resistance when turning. So I took it in and had it put on an alignment machine. It still has the same issue. You can hardly take off with the wheel turned hard in either direction without stalling the engine. I did have to drill the frame for the idler arm from the 72 which I completely eyeballed as I couldn't find any specs on where the holes should go. Opinions? Thanks in advance.