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Home » Public Forums » GMCnet » [GMCnet] Power ignition timing distoried a good 455.
[GMCnet] Power ignition timing distoried a good 455. [message #323681] Sat, 09 September 2017 23:40 Go to previous message
BobDunahugh is currently offline  BobDunahugh   United States
Messages: 2465
Registered: October 2010
Location: Cedar Rapids, IA
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We talked about this here a few weeks ago. A friend told me that he was going to do it to his GMC. I told him don't. He called me Wed. And said he should have listened to me. As I told him that I'd never do it to my GMC. Track car . yes. Well, he now has 7 pistons damaged. And one right rear piston with the top blown out. His 455 had just over 36,000 miles on a rebuild. Just something to think about. Bob Dunahugh
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