My biggest problem is not having a mechanic within several hundred Km thats familiar with a Volvo and I'm very poor, surviving on a disability pension.

My 88 760 Turbo wagon has had it's idle control valve replaced twice in the last year, air mass meter one year ago, fuel pressure valve last year, both fuel pumps eight months ago, all the vacume lines replaced six months ago and to-day something else happened... I started the car and it ran fine for about two km then it started to bog down, puffing black smoke out of the exhaust and losing power and rpm just after it seemed to be heating up enough to blow some warmth out of the heater.
While limping home I noticed that the tach was not registering any rpm's at all and there was an indicator warning light on on the dash pannel that is not shown in my owner's manual. It looks like a picture of a partially closed choke in the throat of carb if you were looking down into a carberator. I pulled the spark plugs when I got home and they were all soaked with gasoline indicating that yes the engine was indeed flooding.
I phoned my mechanic and he had no answer to my problem except to say... "Have it towed in".
I would appreciate any help anyone could give me so perhaps I can direct my mechanic to the sourse of the problem thus saving me a few scarce and cherished dollars.
Thank you all in advance for any help you can give.