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Original Message

Now that you have the distributor right..

By james - 04/16/2003 10:45:24 PM; IP 67.66.244.63

It is time to go to work on the carberator. What brand and cfm size is it? The reason that I am asking is that many a mighty FE has been short change a long life expectancy by not calibrating the carberator to match the cam. Low vacumm conditions caused by long duration cams will cause a rich condition that you will not be able to cure with jet changes and idle screw adjuments no matter how hard you try. You will be changing plugs a lot and noticing that some plugs are more fouled than others. This rich condition can wash rings and prevent a good set of rings from ever seating properly. A few folks that know there stuff will take your carberator and do things like drill .125 diamiter holes in the butterflies and use a smaller rated power valve (if it is a Holley) to cure it. I just went through this with my 428 CJ. I had a Edelbrock 750 that tried everything to snap it out of the plug changing blues with. I took the vacumm readings and changed the needle and seat to match the chart that come with the carberator but nothing fixed it until I went back with the original Holley with the modifications already mentioned. The reason that a lower inch gram power valve is used is that it will not come on dribbling fuel into the intake to foul plugs when it is not needed. Instead, it will come on at a lower vacumm to match the cam. I know...I wrote a book but I just sleighed that dragon and I am still basking in the glory of it. Good luck

How many miles have you put on it?

Have you done a plug check?

Lumpy cams have

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Collapse <a href=../ForumFE/reply.aspx?ID=16913&Reply=16913><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor16913" onclick="return false;">428 initial timing optimal??</a> -- <font color=#0000ff>Tim, <i>04/16/2003</i></font><script type="text/javascript">
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428 initial timing optimal?? -- Tim, 04/16/2003

Collapse <a href=../ForumFE/reply.aspx?ID=16914&Reply=16913><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor16914" onclick="return false;">You have left out a few things</a> -- <font color=#0000ff>james, <i>04/16/2003</i></font><script type="text/javascript">
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You have left out a few things -- james, 04/16/2003

Collapse <a href=../ForumFE/reply.aspx?ID=16918&Reply=16913><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor16918" onclick="return false;">RE: You have left out a few things</a> -- <font color=#0000ff>Tim, <i>04/16/2003</i></font><script type="text/javascript">
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RE: You have left out a few things -- Tim, 04/16/2003

Collapse <b>Now that you have the distributor right..</b> -- <font color=#0000ff>james, <i>04/16/2003</i></font>

Now that you have the distributor right.. -- james, 04/16/2003

RE: Now that you have the distributor right.. -- Tim, 04/16/2003

Collapse <a href=../ForumFE/reply.aspx?ID=27228&Reply=16913><img src=../images/reply.png width=30 height=10></a> <a href="#" id="anchor27228" onclick="return false;">RE: Now that you have the distributor right..</a> -- <font color=#0000ff>Bob P., <i>04/23/2006</i></font><script type="text/javascript">
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RE: Now that you have the distributor right.. -- Bob P., 04/23/2006

Sorry to say, but both types of floats have their problems. [n/m] -- Mr F, 04/23/2006

Initial timing is irrelevant. -- Gerry Proctor, 04/24/2006