GM HEI computer control

Sun Dec 6 19:13:36 GMT 1998

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    -----Original Message-----
    From: Curtis Mittong <poohbear at twd.net>
    To: diy_EFI at efi332.eng.ohio-state.edu =
<diy_EFI at efi332.eng.ohio-state.edu>
    Date: Sunday, December 06, 1998 12:32 PM
    Subject: GM HEI computer control
   =20
    The oem EFI type distributors have no mechanical, or vac advance.  =
There are some aftermarket efi types that are fuel control only.
    Bruce
   =20
   =20
    I upgraded my 66 Bonny to HEI a few years back.  It's non-comp =
controlled, like from a 77 or so.  Is the only difference between this =
and a comp control the ignition module?  Is the vacuum advance =
different, or is it mechanical advance only?  I need to know when I go =
to EFI.
    =20
    Thanks,
    Curtis

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    <DIV><FONT face=3DArial size=3D2><B>-----Original =
Message-----</B><BR><B>From:=20
    </B>Curtis Mittong &lt;<A=20
    href=3D"mailto:poohbear at twd.net">poohbear at twd.net</A>&gt;<BR><B>To: =
</B><A=20
    =
href=3D"mailto:diy_EFI at efi332.eng.ohio-state.edu">diy_EFI at efi332.eng.ohio=
-state.edu</A>=20
    &lt;<A=20
    =
href=3D"mailto:diy_EFI at efi332.eng.ohio-state.edu">diy_EFI at efi332.eng.ohio=
-state.edu</A>&gt;<BR><B>Date:=20
    </B>Sunday, December 06, 1998 12:32 PM<BR><B>Subject: </B>GM HEI =
computer=20
    control</FONT></DIV>
    <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
    <DIV><FONT face=3DArial size=3D2>The oem EFI type distributors have =
no=20
    mechanical, or vac advance.&nbsp; There are some aftermarket efi =
types that=20
    are fuel control only.</FONT></DIV>
    <DIV><FONT face=3DArial size=3D2></FONT><FONT face=3DArial=20
    size=3D2>Bruce<BR><BR></DIV></FONT>
    <DIV><FONT size=3D2>I upgraded my 66 Bonny to HEI a few years =
back.&nbsp; It's=20
    non-comp controlled, like from a 77 or so.&nbsp; Is the only =
difference=20
    between this and a comp control the ignition module?&nbsp; Is the =
vacuum=20
    advance different, or is it mechanical advance only?&nbsp; I need to =
know=20
    when I go to EFI.</FONT></DIV>
    <DIV>&nbsp;</DIV>
    <DIV><FONT size=3D2>Thanks,</FONT></DIV>
    <DIV><FONT size=3D2>Curtis</FONT></DIV></BLOCKQUOTE></BODY></HTML>

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