From: "Swygert, Francis G MSgt 436 CES/CECM" <Francis.Swygert3@xxxxxxxxxxxx> Subject: [AMC-List] Duraspark distributor woes (258 six) To: <tomj@xxxxxxx>, <mail@xxxxxxxxxxxx> Message-ID: <092D8CF6635129428E9B66DC582C3B3D01A0FBA0@xxxxxxxxxxxxxxxxxxxxxxxx> Content-Type: text/plain; charset="us-ascii" Richening it a bit will reduce pinging under load. I've tried weaning mine off gas at times too, it usually balks.... ;> Once it's richened up a little you will likely get better mileage. At 70 mph you should have the secondary cracked open with a small 2V carb. That's my experience with the Autolite carb on an old Pinto anyway. I think the secondary started opening around 50 mph. The strokers guys have found that running an 87-90 Renix spark plug in the 91-06 HO engine (when stroked) will reduce pinging also. The recommended plug for the Renix is shorter than the HO plug. Don't know if that info will help or not. I think the longer reach plug is getting hot and causing pre-detonation, the shorter one doesn't get as hot from combustion. Just my opinion though! _________________________________________________________________Find a local pizza place, music store, museum and more?then map the best route! http://local.live.com?FORM=MGA001
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