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Old 01-04-2013, 03:04 PM   #2
Ventmaster


 
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Drives: 2017 1SS 6spd
Join Date: Jan 2011
Location: Utah
Posts: 2,860
My advice is take the plenum spacer off!

It's "potential" benefit is to prevent the knock sensors from pulling timing- and you can bet the knock sensors are going crazy everytime that bolt starts rockin' on the bonnet!
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