Timing degrees

[Myjag]

i am in need of the timing degrees for a 3.1 1990 apv chevy minivan.

also it ran fine till i fixed the heater hose coming from the manifold and replaced all vacuum lines. it idles fine but as soon as you put it in gear it starts to lope and die. any suggestions on what i should do for it?

[geoffinbc]

First off I bet you have a vac line missing. Most likely the MAP sensor. Timing could not have changed by replacing vac lines.