[KYrob]

what should the fuel pressure be at the filter head? i installed an airdog ii and want to make sure it is set at 12psi. i am using the merchant auto adapter to install a pressure gauge in the filter head.

 

[jc1843]

You may have to lower the pressure a little-- the early engines developed a surge at idle when the pressure was over 10 lbs.

 

[nsolimini]

With my AD 150, my gauge tells me I am getting 11