<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style><!--
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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Tom<o:p></o:p></p><p class=MsoNormal> The PCV valve on all Tiger engines is the start of emissions control – this eliminated the road tube that sort of siphoned fumes under the car.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>The Mk IIs, 1966 289 engine have emission heads but the air pump injector ports are not machined – these are the C6OE-M heads and there is a flat spot just by the exhaust port where the injector port could be machined.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Ron Fraser<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><div><div style='border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal><b>From:</b> Tigers [mailto:tigers-bounces@autox.team.net] <b>On Behalf Of </b>Tom Witt via Tigers<br><b>Sent:</b> Monday, November 06, 2017 2:40 PM<br><b>To:</b> tigers@autox.team.net<br><b>Subject:</b> Re: [Tigers] Timing<o:p></o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p><div><div><div><p class=MsoNormal><span style='font-size:12.0pt;color:black'>For a period of time in the 70’s California required I believe it was... ‘55-‘65 cars to install a NOX system. It consisted of a radiator hose sized copper tube about 3” long, it had a heat sensitive vacuum port (in/out) and two hose clamps. The hose was cut near the radiator and the device inserted. The vacuum source was run to this device and then back to the vacuum advance. It was suppose to reduce NOX by stopping the vacuum advance until the car was warmed up. Most people just bypassed it after passing the test. There was an even simpler means that consisted of two port caps and a sticker that stated the vacuum advance was disabled – completely. I believe the sticker even discouraged long, heavy throttle usage. I know some of the Ford 6 cylinder cars had no mechanical advance at all, - only vacuum. Disable that and you got nothing! EFI and computer controlled ignition sure is nice to have these days.<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;color:black'> <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-size:12.0pt;color:black'>BTW, at least in California one way to tell a ‘65 from a ‘66 Mustang is to look under the hood. 1966 was the year the state ramped up the smog stuff big time.<o:p></o:p></span></p></div><div><div><div><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Tahoma",sans-serif;color:black'> <o:p></o:p></span></p></div></div></div></div></div></div></body></html>