Hey folks, and tnx in advance. 1982 Datsun 5 speed Trubo.  at cold start the car idles steady at aprox 1100 RPM.  10min later after it warms up i start to hear little miss here and there.  the longer it runs, the more miss and rough idle starts to happen to a point that needle is all over the place.  I place a vacuum gauge on the Fuel Reg hose and i see that at first its steady in the green but again once car is warm, gauge is all over the place form RED to Green.   here is the in