Help!

[v8snvme]

I have an 87 T-Type with T-49,DP,Blue tops,208 cam,Ruggles heads,and all the other basic goodies.My problem is every great once in a while when you stop at a stop light it will blow some blue smoke for a few seconds and quit.This is pretty thick smoke and it's really starting to worry me.No numbers on my scanmaster change when this happens nor will it set a code.Give me some opinions.What do ya'll think?

 

[equalizer442]

sounds like the turbo is on its last legs