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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><pre>[[[<span style='font-family:"Courier New"'>Unfortunately, the Throttle body I’m using is a 45mm without the advance<o:p></o:p></span></pre><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>nipple, so I can’t run any vacuum advance, but do I really want to use just<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>the retard?]]]<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>On our ’72 with vacuum retard, the vacuum retard is what retards the timing enough to enable the motor to idle. Without the vacuum retard and the timing set at factory specs – I cannot get the motor to idle down to 850 rpm, no matter what! Actually - I have to pull a spark plug wire in order to get the idle down low enough to set the timing. Then when the timing is set and it all goes back together; I can use the idle speed screw to set the idle speed – even lower than 850rpm if I wanted to… because the vacuum retard changes the timing at idle.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>I could be wrong, but I don’t think the vacuum retard has a purpose once your foot touches the throttle ;-)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'><o:p> </o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Dave Pallo<o:p></o:p></p><p class=MsoNormal>'72 Square ~ Elwood<o:p></o:p></p><p class=MsoNormal>Fairport, NY<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>