Ferd/289 Posted June 5, 2012 Share Posted June 5, 2012 Trying to start an engine sbf 289 with a double pumper Holley. I rebuilt the carb with a 6.5 power valve. I crank engine and it seems to ingnite fuel a tad bit, but cannot sustain any revs. Seems like its flooding out. I have checked, fuel to carb, spark, and dont see any vacuum leaks, valve movement seems ok.. Electric fuel pump pressure is just under 5 lbs, but fluctuates from under 5 to 0 back and forth while cranking. Holley carb float level is correct. - will engine with a high performance cam not start if power valve too high a rating, do I need a 2.5 or 3.5 power valve? - would car not start if electric fuel pump not quite maintaining 5-7 pressure? I would think car would start and then either run rough or die quickly, but engine wont fire up and rev. Ferd Quote Link to comment Share on other sites More sharing options...
Ferd/289 Posted June 13, 2017 Author Share Posted June 13, 2017 fixed Quote Link to comment Share on other sites More sharing options...
NewZed Posted June 13, 2017 Share Posted June 13, 2017 (edited) Dang. I was just about to post a suggestion. It was a good one too, 5 years of thought behind it. Edited June 13, 2017 by NewZed 1 Quote Link to comment Share on other sites More sharing options...
Curtball Posted August 4, 2017 Share Posted August 4, 2017 Hell post it anyways lol Quote Link to comment Share on other sites More sharing options...
northwoodz Posted August 5, 2017 Share Posted August 5, 2017 Haha tell us what it was!! Quote Link to comment Share on other sites More sharing options...
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