I've been carefully monitoring the amount of smoke I get in the rear view mirror under full throttle, and it is very very little. It's most like particulate matter than gray smoke. I installed a boost controller and locked it in at 13.5 psi like "Speedy" and have already turned the ALDA counterclockwise 1.5 turns. Is it conceivable that I could need another half turn counter clockwise? I'm going by the fact that I dont get the gray smoke at full throttle above 3000 RPM. The car runs great but I'd like to get the mixture right for performance and fuel economy reasons. Thanks

Alex

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1983 300D (parked for four years)
2012 VW Sportwagen TDI Manual
2001 Miata SE
1962 Chevrolet Corvair Rampside