Fuel Pressure Regulator Drilling

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c17r15

Junior Member
http://www.theoldone.com/articles/regulator/

i have a walboro 255 fuel pump. Without the installation of a fuel pressure regulator will cause my engine to run excessively rich due to the increase of fuel pressure across the board. now i have a B&M FPR and i'd like to do the drilling trick.

has anyone done this? i don't have a .035" drill bit but a 1/16" (.0625") bit. i'd think that the bigger the relieve hole the bigger the adjustability?

please let me know.
thanks
chris
 
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