Map sensor vacuum source.
 

I have a carbed style intake and i need to add a vacuum port. I am running a high overlap port so the vacuum signal will be weak and fluctuate. Would it be a good idea to tap into both primary runners to try and get a more stable signal?

TIA
Allen

I've done that on an ITB setup. Run two nipples to a T then to the MAP sensor. Worked well enough that I didn't have to fool with TPS blend or zero throttle mapping. It's worth a try anyway. If that doesn't work the zero throttle map should get it done for ya.

Sweet, thanks for the info.