Yes, its called Dieseling. Leaking Carb & Carbon buildup like Bonzo said. The carbon gets so hot that it ignites the fuel. Also incorrect timing plays a factor in it.
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2001 Trans Am WS6 •SLP Loudmouth II •UMI Suspension •12.857 @ 109.57
1996 Trans Am WS6 •Pacesetter Longtubes •Strange 12 Bolt •Spohn Suspension •11.152 @ 123.85
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