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RE: 428 Shelby Engine "pings"
By Will - 06/15/2001 11:57:20 PM; IP 24.162.191.130
I'm running 18-20 degrees initial with 38-40 total all in by 3800 (I think). I have vacuum advance hooked up to the front carb. It's a 428 with a 67 Shelby intake and 2 Holley 600's.

I had the same problems you have until I got a new distributor from Faron R. He did a great job on the curve, but I bet you could do the same job locally.

I can get the exact specs if you like.

Bottom line is, my engine runs a LOT better at 18-20 initial. It barely runs at all at 10 degrees. With the advance curve limited to 16-18, I can run more initial w/out pinging under loads. I've been running 93 octane w/out octane booster.
This thread, so far...
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Collapse <a href=../ForumFE/reply.aspx?ID=6848&Reply=6848><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor6848" onclick="return false;">428 Shelby Engine "pings"</a>&nbsp;-- <font color=#0000ff>Steve Boulay, <i>06/14/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=6848', contentMargin: 60, icon: $('anchor6848') }); </script>  428 Shelby Engine "pings" -- Steve Boulay, 06/14/2001
Collapse <a href=../ForumFE/reply.aspx?ID=6849&Reply=6848><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor6849" onclick="return false;">Vacuum advance? What distributor's on there? [n/m]</a>&nbsp;-- <font color=#0000ff>Mr F, <i>06/14/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=6849', contentMargin: 60, icon: $('anchor6849') }); </script>  Vacuum advance? What distributor's on there? [n/m] -- Mr F, 06/14/2001
Collapse <a href=../ForumFE/reply.aspx?ID=6850&Reply=6848><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor6850" onclick="return false;">RE: Vacuum advance? What distributor's on there? [n/m]</a>&nbsp;-- <font color=#0000ff>Steve Boulay, <i>06/14/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=6850', contentMargin: 60, icon: $('anchor6850') }); </script>  RE: Vacuum advance? What distributor's on there? [n/m] -- Steve Boulay, 06/14/2001
 Yep. OEM unit was dual point, mechanical.[n/m] -- Mr F, 06/14/2001
 RE: Vacuum advance? What distributor's on there? [n/m] -- richard, 06/15/2001
Collapse <a href=../ForumFE/reply.aspx?ID=6873&Reply=6848><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor6873" onclick="return false;">RE: 428 Shelby Engine "pings"</a>&nbsp;-- <font color=#0000ff>BOB HOPKINS, <i>06/15/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=6873', contentMargin: 60, icon: $('anchor6873') }); </script>  RE: 428 Shelby Engine "pings" -- BOB HOPKINS, 06/15/2001
Collapse <a href=../ForumFE/reply.aspx?ID=6876&Reply=6848><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor6876" onclick="return false;">Not surprisingly, GT500 was unique in having 428 w/ dual point. [n/m]</a>&nbsp;-- <font color=#0000ff>Mr F, <i>06/15/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=6876', contentMargin: 60, icon: $('anchor6876') }); </script>  Not surprisingly, GT500 was unique in having 428 w/ dual point. [n/m] -- Mr F, 06/15/2001
Collapse <a href=../ForumFE/reply.aspx?ID=6879&Reply=6848><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor6879" onclick="return false;">RE: Not surprisingly, GT500 was unique - a 428PI w/ dual point. [n/m]</a>&nbsp;-- <font color=#0000ff>BOB HOPKINS, <i>06/15/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=6879', contentMargin: 60, icon: $('anchor6879') }); </script>  RE: Not surprisingly, GT500 was unique - a 428PI w/ dual point. [n/m] -- BOB HOPKINS, 06/15/2001
 RE: Not surprisingly, GT500 was unique.... [n/m] -- Kevin Marti, 06/18/2001
Collapse <a href=../ForumFE/reply.aspx?ID=6880&Reply=6848><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor6880" onclick="return false;">RE: 428 Shelby Engine "pings"</a>&nbsp;-- <font color=#0000ff>Steve Boulay, <i>06/15/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=6880', contentMargin: 60, icon: $('anchor6880') }); </script>  RE: 428 Shelby Engine "pings" -- Steve Boulay, 06/15/2001
 RE: 428 Shelby Engine "pings" -- BOB HOPKINS, 06/15/2001
 Look for cast & stamped info, like this.... -- Mr F, 06/15/2001
Collapse <b>RE: 428 Shelby Engine "pings"</b>&nbsp;-- <font color=#0000ff>Will, <i>06/15/2001</i></font>RE: 428 Shelby Engine "pings" -- Will, 06/15/2001
Collapse <a href=../ForumFE/reply.aspx?ID=6922&Reply=6848><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor6922" onclick="return false;">RE: 428 Shelby Engine "pings"</a>&nbsp;-- <font color=#0000ff>Steve Boulay, <i>06/19/2001</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=6922', contentMargin: 60, icon: $('anchor6922') }); </script>  RE: 428 Shelby Engine "pings" -- Steve Boulay, 06/19/2001
 RE: 428 Shelby Engine "pings" -- Will, 06/19/2001
 RE: 428 Shelby Engine "pings" -- 32 valve, 06/16/2001
 RE: 428 Shelby Engine "pings" -- Rick Croom, 06/26/2001
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