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Discussion Starter · #1 ·
Do KB hypers tend to want a lot less timing than other pistons?
Do they have more tendency to detonate due to the higher temp?

Still puzzled why a 9.7 C/R can only take 30 deg. without rattling.
 

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I used to run a total of 40 degrees on my 406. It used to run on the fat side though. The best run came at 40. I had a 10.25 300hp 350 that used to always ping especially on the burnout. I just put some octane booster(the cheap stuff) and problem went away.
 
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