Fuel delivery-filter

Does someone have a good links on what mic filter and where to place them in the system?
I ran a Earls -8 filter before the pump and caused me all kinds of trouble.

I have a 1971 maverick. The gas tank is toast and I want to change it. Now, on top of the tank there is a vent cap. Some of these come drilled and some are plugged. I assume the plugged ones run a vented gas cap. How do I tell the difference from a vented cap or not? Should all gas tanks run this vent on top?

Thanks

Tom

Tom,
I believe you want a vented cap. I also have a plug on the 67 Ranchero tank. I used it for my fuel return when I installed the Mustang 5.0 SFI. The 64 Falcon also uses a vented cap. My 68 uses a vented cap. Not until I get to my 70 Cyclone do I have a non vented cap and it is low below the bumper behind the license plate. There is a 1/4" loop line in the trunk to vent the tank, it exits outside through the trunk. My vented caps have a check valve on them.
On the 5.0 install I have a normal 3/8 steel fuel filter before the pump and then the stock Mustang 5.0 filter between the pump and engine. Has worked for 150,000 miles.
Warren

Thanks Warren

Hey, Doug Clark said to say hi.


Tom