[boostboy]

Ok, My friend bought my 87 Sundance from me. Heres how it goes......... He blew the head gasket. Got it replaced, Gets it back. Runs Like shit now. He replaced the O2 sensor still runs like crap. Like running pig rich. Today I went over the basics and played with the timing, and got it so it was idling on its own. and my friend revved it up and it shot black soot out the exhaust....And I do mean shot it out. The car runs rich from getting it back, and its almost like a turbo diesel the way it smokes. Anyone have any ideas on what could be wrong???

 

[CSXT404]

I had some of the same troubles, but fixing a vacuum distribution block and Map senor problems cleared it up for me. It would stain my drive way it was so nasty. I am running a 3Bar Map though. Check Vac lines most likely they were put on wrong or the Map is having problems.

 

[badassperformance]

you said you played with timing... ingnition timing?

check cam timing too

 

[MVaughn]

Check cam timing and make sure the ignition timing is ok too. Look closey at the map sensor and make sure it is plugged in and the vac. line to it are in working order.

Let us know what you find out.