What is initial timing on 4.3GL & can I advance it to improve performance?

Lou C

Supreme Mariner
Joined
Nov 10, 2002
Messages
11,802
Without knowing what your actual WOT rpm is, hard to say. However, if you fix the tach and can see that you get your max rpm then that's all its got. Your max rpm is much more important than your MPH. My boat is a 20' H-200 and I think its supposed to do 42 or so but it has been bottom painted so many times that it is SLOW.....nothing much I can do but have the bottom blasted and start over again.
 
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