idle kpa 60
03-17-2009, 08:02 PM
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idle kpa 60 is this normal for this setup or do i have a vaccum leak? comp 236,244@50, 555in, 574ex ported stock lt1 heads(48cc, have been milled) stock intake 58mm tb, hooker long tubes. at idle kpa is 60 and as i give it gas it goes to 40kpa. can't find a leak as most ports are blocked off.
03-17-2009, 09:27 PM
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i had the vaccum line plugged into the fuel pressure regulator and noticed when i give it gas it creates vaccum and makes the pressure drop so i disconnected it today. i was having an idle surging problem and surging while cruising at low rpm (idle to 3000). will drive it tomorrow and see if that helps. 
