Yeah I'm a newb....I just bought an 87 D50 sport with the 2.6 auto. It runs great until it gets up to temp then it idles really rough. I just bought it from a lady whose husband died last year and the truck sat for many years. It has 88k miles. It has fresh gas,new plugs,wires,cap, elec fuel pump. All installed before I got it.
Also do I need the heat tube that comes directly off the exhaust manifold? It has holes that I patched until I can find one if needed.
Love the truck, pics coming soon.