Have a look at your plastic vacuum lines also. I had it so bad my RPMs would hold at 3K until I came to a COMPLETE stop. Turned out to be a cracked line and a $.50 6" rubber hose fixed it


Alex 00 T-Red/Tan SVTC #1964/2150 167 HP @6800 153 TQ @3000 Sold- 98 'Tour SE 24V 5-spd 149 HP @5900 148 LB FT @4300