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Author Topic: fuel pressure and spark plugs ??? cees87drop ¯ Member # 4066 posted                              1. what should my fuel pressure regulator be set at? 2. What spark plugs should i be running? NA 347 with a stock block. edelbrock performer heads. 155 fuel pump. 24lb injectors. pretty much have all bolt-ons. thanks for reading. Posts: 855 | From: san jose | Registered: Jan 2004  |  : whitelx91 ¯ Member # 8317 posted                              I like the autolite 3954's seem to work pretty good and fuel pressure i would try going with around 40-45psi but keep in mind every motors different. -------------------- SuistangS Posts: 380 | From: Sacramento Ca. | Registered: Apr 2008  |  : *Als50* ¯ Member # 6003 posted                              you mite wanna change out the fuel pump to a 255 -------------------- '00XlRangerSlammed-'91Gt347Turbo-'93CalypsoSCFaleen FOXLIVESMATTER ---------------- *BlackGunsMatter* Posts: 1897 | From: La Bahia... | Registered: Sep 2005  |  : cees87drop ¯ Member # 4066 posted                              Thanks for the input, but the parts store didn't have 3954's. I was running 3926's before. Do you think it would be fine to continue to use these. Posts: 855 | From: san jose | Registered: Jan 2004  |  :

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