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FUEL PRESSURE SHIM

2K views 5 replies 5 participants last post by  EMMAS POWER STROKE 
#1 ·
CAN YOU DO THE FUEL PRESSURE SHIM WITH THE BB ON A 2000 P/S DOES IT HELP PEFORMANCE. THEY SAY IT WILL MAKE PSI ABOUT 70 THANKS ANDY
 
#2 ·
Makes for a really hard start. There was a thread a while back on this topic. 95% of the replies were against doing the mod
 
#4 ·
that means you were proly running 80+ fuel pressure. the fpr shim is for more of a older weaker spring.
 
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