Kenne Bell Fuel Pressure Disc Install - Which way?

[slow98cobra]

May seem like a dumb question and probably is, but which way does the disc go into the fuel rail underneath the FRPS? One side has a very very slight taper and the other is just a flat hole. Does the slightly tapered end go down towards the rail and the perfectly flat side go towards the FRPS?

 

[03' White Snake]

It should be a straight hole thru the disk. If you think yours is tapered, then put the larger opening on the rail side.

The idea is to slow the fuel from entering the FRPS and popping the diaphragm. I ran one for years before going aftermarket rails.

 

[slow98cobra]

Sounds good!