Hmmmm fpr??

[mildtowild]

fuel pressure is 50# with no vac line and 42# vac attached. I am assuming that the old fpr is not dealling well with the walbro. if it makes a difference i am running an autometer from the fuel rail. anything else cause this? could this be the cause of the intermitant stumbling i am getting? the plugs are a little black.

 

[Luke]

Re: Hmmmm fpr??

its suppose to be lower with the line on

 

[mildtowild]

Re: Hmmmm fpr??

I know it is rich and will foul the plugs but can i drive it untill my apfr gets here?

 

[turbodig]

Re: Hmmmm fpr??

You sure you don't have one of those adjustable FPRs that had the screw inside the vacuum port?

50 psi for a stock regulator is waaaay too high.

 

[Don W.]

Re: Hmmmm fpr??

You sure you don't have one of those adjustable FPRs that had the screw inside the vacuum port?

50 psi for a stock regulator is waaaay too high.

X2

Drive it that rich? Prolly not. Yur risking fouling plugs to where it won't run plus washing cylinders. Maybe a restriction in the return line somewhere?