Thank you for your reply..
i did replace the intake gst with the long block repair.
i have tried to spray carb cleaner all over the intake area,as well as the vac. tree. also around the char.canistor and connecting lines.
no effect there.
it does seem to be a fuel issue at idle/decell.
by the way i did try another ig.module
another source of info i tried told me to watch the o2 voltage during the problem.
it really stayed .3-.5 volts ,back and forth.
after restart it will idle smoothly untill a decell cycle
im sure im missing something yet i just don't see it
again ,,thank you for your time
mikey the mad