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Old 03-15-2018, 06:47 PM
OM617YOTA OM617YOTA is offline
Mad Scientist
 
Join Date: Dec 2012
Location: Oregon
Posts: 1,598
NZScott is right, you're talking about fuel pressure regulator spring. Delivery valves are a whole different doohickey.

I can heartily recommend Greazzer's spring mod.
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617 swapped Toyota Pickup, 22-24 MPG, 50k miles on swap
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