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  1. RRSweden

    Tuning a 650 Holley DP

    Hi. I'm running a 650DP on my 383 and I recently installed an air/fuel-meter. The enginge has problems when moving from standing still on first gear (manual trans). The air/fuel meter showed that the mixture gets really poor at that moment so I guess thats the problem. I have to give a lot of...
  2. RRSweden

    What jets would you run...

    ...on a Holley 650 double pumper on a slightly-meaner-than-stock mopar 383? I havent tried mine as is yet, cause I'm rebuilding the entire engine. But the ones sitting when I bought it was Primary: 69 and Secondary: 85
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