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AFR should run between 12.7:1~13.2:1........
Timing can be advanced slightly at that AFR.
The fuel should cool the cylinder charge to prevent detonation.....
FYI something is really wrong with that dyno, redtops with 10PSI T25's are normally around 225WHP, Blacktops about 238WHP......
Are you sure it's not a T28?????
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