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odd boy
June 5th, 2009, 12:54 AM
Hi,

I am tuning vette 97, 92 fast manifold & TB, bat heads, magicstick 4 cam, 383 stroked, 36 injectors....etc

It reads 17 deg, whenever I advance it, it knocks. I did many before with the same setup, usually they accept 28 deg. Any idea gents????

The AFR is 12.3 ~ 12.5.

mr.prick
June 5th, 2009, 01:07 AM
IIRC the 97-98 LS1s have inferior Knock sensors.
try reducing {B6203} 30%

Black_Tiger
June 5th, 2009, 11:20 AM
u meen this ?

odd boy
June 5th, 2009, 11:05 PM
but I here knocks?