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Timing recommendations for low compression 390?
By Charles - 11/08/2001 8:39:06 AM; IP 207.121.52.30
I am putting together a 390 for my truck that will be used for hauling/towing. Empty truck is 6700 lb. 4.88 gears, 0.85 OD (2570 rpm at 60 mph). Pistons are the 390/410 low compression truck (Sterling 381P), cam is a Crane dual pattern 260-2H. Haven't measured my head volume yet, but I'm assuming my CR will be around 8.0:1. I plan to run 87 octane gas.

I am not familiar with the tolerance of the FE combustion chamber to advance and octane. Any recommendations for initial timing, distributor recurve, and vacuum advance? I have an adjustable vac.advance canister on a stock distributor with a Pertronix ignitor. Thanks.
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Collapse <b>Timing recommendations for low compression 390?</b>&nbsp;-- <font color=#0000ff>Charles, <i>11/08/2001</i></font>Timing recommendations for low compression 390? -- Charles, 11/08/2001
 RE: Timing recommendations for low compression 390? -- richard, 11/08/2001
Collapse <a href=../ForumFE/reply.aspx?ID=9208&Reply=9179><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor9208" onclick="return false;">What head castings are you using, Charles?</a>&nbsp;-- <font color=#0000ff>Paul M, <i>11/10/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=9208', contentMargin: 60, icon: $('anchor9208') }); </script>  What head castings are you using, Charles? -- Paul M, 11/10/2001
 RE: What head castings are you using, Charles? -- Charles, 11/10/2001
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