AJC
Member
Are these part or the thermostat ignition fast idle? There not on my vacuum diagram. If they are it's just switching from port to manifold vacuum right? There are 2 of them. 1 has 3 ports the other has 2.
Most all Mopars run on ported vacuum even before emissions were even a consideration.We have no emissions tests or even an inspection here in Minnesota.
I thought ported vacuum was another emissions related thing. There are a lot of opinions on weather to use ported or manifold vacuum for the vacuum advance.
Not emissions related. EFFICIENCY related. Not opinion based, SCIENCE based (Physics of flame travel, engine speed, volumetric efficiency, on and on.)I thought ported vacuum was another emissions related thing.
True for all cars in general. Proper advance curves for street driven engines are (were / will always be) important.Most all Mopars run on ported vacuum even before emissions were even a consideration.