Now that my engine is getting rebuilt, I no longer need these. They were purchased as low mileage used and I have new o-rings on them.
They are rated at 30# on Ford fuel pressure of 39 psi.
31.68# on LT1 at 43.5 psi.
36.58# on an LS1 at 58psi.
The E85 should have cleaned them out fairly well and kept them clean too!
$165 + shipping