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I'm running a 2004 LS1 with an A&A Supercharger. Other then the supercharger, everything else is stock. I'm having an issue with possible valve float above 5,500 rpm's. It has been suggested that I change the valve springs to get rid of the problem. Question, beehive or dual springs, and who's to use? Has anyone else run into a similar issue? If so, how was it fixed? Thanks......
 

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comp cams. # 918 or 921. i have a 643 lift cam red line @7K .using the 921's these are dual springs
get those skinny stock pushrods outta there.
 
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