fuel pressure dropping over time

diymirage said

what are your thoughts on this filter?

Holley 162-553 Holley HP Billet Fuel Filters | Summit Racing



seems like the physical size is OK, my fitting should switch over and all, i just dont know if i should get a 40 or 100 micron

(this is the 40)
Holley 162-563 Holley HP Billet Fuel Filters | Summit Racing

they both are rated at 175 GPH, where the pump is rated at 120, so these should play well together, no?

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That’s a great filter. Expensive but worth it. And they are cleanable. I used two aeromotives very similar. One 100 micron on the inlet side of my electric pump and one 40 micron on the outlet side. That’s what aeromotive suggests. Holley I’m guessing would recommend something similar with an electric pump but with a mechanical pump I’m not sure. The sock in the tank may be enough. Just a 40m on the outlet.