How much pressure

[kelly]

How much pressure does the holley six pack need. I'm running about 8lbs now. It's on a new rebuilt 75 440 with a small cam.

 

[mmissile]

That should be plenty. My pump-gas hemi with twin 950/4150's, runs great at 7 1/2.

 

[kelly]

That should be plenty. My pump-gas hemi with twin 950/4150's, runs great at 7 1/2.

I was told 5-7lbs was good. I'm at 8lbs and hope it's not to much.

 

[hemi67s]

6 to 6.5 is about right

 

[GetX'd]

You would be good with anywhere between 6-7 lbs. My six pack runs fine at that pressure.

 

[kelly]

Then is the 8lbs to much and needs to be brought down.