So when my 87 TII is at idle, and I jab the throttle about 1/2 way is bogs and then revs up smoothly.
Same when I am rolling in gear at say...3000 RPMs, then punch it quickly. It acts like it it getting too much fuel all at once, and then finally reacts.

I am running with no pulsation dampener, could this be the culprit?
My other guess was some sort of vacuum leak, or my spark plugs are fouled up.

 

i am have the same problem......sort of...... mine will sputter right when the boost kicks in, then will boost smoothly.... check the responses on mine.."sputters when boost kicks in" .... they might be the same problem!

 

Is the TB ported? Not sure if a ported TB would affect it at idle.

 

David, my car does the same thing, Im thinking it may be timming related? I just havent got the chance to mess with it.

 

i know mine isnt timing related, i already did my timing...... sputter still there!! not saying that it isnt your problem! we all know for every problem.... there are 100 things it could be!!!

 

Thats no joke. Free bump for you.

 

vac leak somewere maby in the UIM area? You can spray some carb cleaner on a hose or area were you think there is a leak. That was the case on my car maby not yours but worth a try.

 

I need to ditch the vacuum rack to eliminate any problems.
I pull about 400mm/Hg at idle, so I would think that I dont have any big leaks.

One thing I did think of, was that I have done a basic "TB mod", but its not ported. I think the part on the TB where the secondary plate shaft (no secondary plates) rests needs to be plugged up.
I shall see...