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PostPosted: Thu Nov 22, 2001 2:49 pm 
In building up a performance 225 (9.5 to 1 compression, oversize valves, porting, .030 bore, 4bbl, headers,MP Elex Ignition, etc) I was told it should run at about 12 degrees advance and about 32 degrees total advance. How do I put in the distributor for initial startup? Do I turn the crank approx 12 degrees forward from TDC and set the rotor on #1 or what????? My cam was ground at 3 degrees advance and Intake opens at 6 degrees.

usclstaffingnet@sprintmail.com


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PostPosted: Fri Nov 23, 2001 10:01 am 
Quote:
: In building up a performance 225 (9.5 to 1
: compression, oversize valves, porting, .030
: bore, 4bbl, headers,MP Elex Ignition, etc) I
: was told it should run at about 12 degrees
: advance and about 32 degrees total advance.
: How do I put in the distributor for initial
: startup? Do I turn the crank approx 12
: degrees forward from TDC and set the rotor
: on #1 or what????? My cam was ground at 3
: degrees advance and Intake opens at 6
: degrees.


That is correct. With #1 on the compression stroke, set the timing mark to what you want (12º BTDC) and point the rotor at #1. To fine tune, turn the key on, turn the distributor all the way clockwise, then rotate counterclockwste until you here a "snap". You may have to do this a few times to get the feel of it. If you are using electronic ignition, you will have to rotate the distributor a little faster to hear the snap than if you have a points ignition.

Chuck

webmaster@omnipages.com


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PostPosted: Fri Nov 23, 2001 10:24 pm 
Quote:
: That is correct. With #1 on the compression
: stroke, set the timing mark to what you want
: (12º BTDC) and point the rotor at #1. To
: fine tune, turn the key on, turn the
: distributor all the way clockwise, then
: rotate counterclockwste until you here a
: "snap". You may have to do this a
: few times to get the feel of it. If you are
: using electronic ignition, you will have to
: rotate the distributor a little faster to
: hear the snap than if you have a points
: ignition.


You can stick an extra spark plug into the # 1 wire, ground-out the plug and watch the spark jump the gap as you rotate the distributor, you can see right when it fires.
DD


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