Hello all
We are in the middle of our vacation traveling in our 87 Synco. The van has
been running very well untill all of a sudden it started missing on the
freeway. We pulled over and did a visual inspection. Everything looks ok. I
pulled the plugs and found theky are all fouled.
Once we started bwck up everything worked for a few minutes and the missing
started again.
We have noticed the problem goes away if we keep the accelorator on the
floor . If also goes away for a few seconds  if we let off the accelorator
and reapply
The problem arises when we how the accelorator steady.

Any help is appreciated. I'll be checking email frequenly