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Old 06-17-2021, 09:18 PM   #50
GZ300
Junior Member
 
Join Date: Jun 2021
Posts: 25
With all due respect there's really not much instruction here on how to do this. Anyone can say "I built a 300 and it's faster now". No shit man. If anything this thread is a warning of what not to do because the objective is not to blow the motor up and have to do it twice. Your jetting approach is haphazard at best and there's NO WAY it's putting out max HP with anything near a 150 main jet. You must be running a CV carb with no airbox or something which is a sure way to lose power.
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