[mikuni]

I have the manifold off and that may be hard to get to in the future. Others talk about the thermostat, which is a given but anything under that intake manifold is a bitch.. Any ideas

 

[turnerd]

I can't recall the proper name, but you are talking about the butterfly valves in the lower half of the intake plenum, right? (and the vac actuator on the back side of the intake manifold) I can tell you all they do is open at about 3600 rpm to give it more air. You think something is wrong with it?