Re: RPM's Dropping @idle!?!? suggestions??
I wouldn't rule out replacing the intake manifold gaskets. You can test for this with a propane torch. Start the vehicle and then run the torch carefully along the intake gasket. If the engine surges in RPM then you've pinpointed the leak. If you don't get any engine surging, you can try replacing the IAC (idle air controller) valve located around the throttle body.
'00 Durango R/T 360ci 290hp (modded); 138,500m
'06 Pontiac G6 GT 3.5L 220hp; 44,000m
'12 Chrysler 200 Limited 3.6L 283hp; 13,000m
'99 Taurus 3.0L 2V Vulcan 145hp; 154,300m - Traded
Amsoil in all vehicles!