1967 Impala SS427 L-72?

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----Tommy,,,I would also at least wonder where it went, but you and I both know how many of those idler pulleys got trashed. Since those idlers are fairly easy to come by I actually think it points more to the car more likely being an original L72. Id be willing to bet that the original idler was gone before Bill got the car some 30 years ago.

----And,,,On the pad check, Bill Braun was one of those judges and hes pretty sharp on broachmarks and #s as hes been a judge for a long time at BG as well as MCACN, and other Corvette judging venues......Bill S