New here, with some questions..

[Albatrossian]

Hey all.. I just aquired a 81 GMC Sierra that my father-in-law gave me. It originally came with a 250 straight six with a TH350C. Now it has a brand new 350/TH350. The truck sat for 4 years before I got it, only being started occasionally. Drove it 40 miles to my house and found a few problems.
First, it has manual brakes.. no brake booster. Gotta pump the pedal a few times to get good stopping power. Also, it darts to the right. Secondly, it has ALOT of play in the steering. It wanders alot. It's got brand new BFGs on it, so that eliminates one cause..
Any help, suggestions?
I'll have pics of it up soon.
Thanks.