Chris, there must be something wrong with your intake system. Most probably the Valve Assembly Air Control. As far as I know, This part cannot be cleaned, it should be replaced. Around $230
I tried to clean mine with Carb Cleaner, I ruined it
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Danny
1994 Silver SVX in hybernation, awaiting for the
monsterous awakening (Lebanon)
1967 Mercedes-Benz 250SL Euro Specs, Hard/Softtop, White/Red. Under Complete Restoration
2013 Mercedes-Benz SL350 Euro Specs, White/Red. Mint... Another step into SL Collection.