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Message: <blockquote data-quote="SVTPIC" data-source="post: 401140" data-attributes="member: 10578">ryclef..my meter is calibrated for the 30's. did u guys experience similar things with your mods without a tune?? my vacuum is another thing thats got me scratching my head...im starting to think i may have tightened my rockers down too much...anderson told me to set them at zero lash then a full turn after zero..i was like WTF. i set them at zero then a 1/2 turn. im only making like 8 to 10 inches of vacuumat idle and like 18 on decel. the cam has a 112 lobe sep so that shouldnt be a factor with vacuum. base timing is set @ 10. the car goes to ACA in wilmington de. to get tuned on the 2nd..im just trying to make sure everything is in working order before the tune.thanks for the quick replies</blockquote>