Is my stock FPR going bad?
 

Hi,

Current setup:
330 cc injectors
Walbro 190lp hp
stock FPR
EMB with AutoTune

My fuel pressure at idle and cruising is 40psi but as soon as I start accelerating it jumps past 100psi. I heard that the stock FPR is pretty sturdy and rarely fails so I wanted to get your opinions on what else could possibly cause this problem.

Thanks,

t.t.