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Jetting shouldn't change...maybe a main size at most.

 

You may, however, need to run either a mixture of pump/race gas or straight race gas.

 

You'll need to get a compression reading to tell if you do or not.

 

Normally...145 or more, a slight mixture of race/pump is a good idea...

 

Generally, over 165PSI and you need race gas....

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i think around 500ft above sea level

 

hey butch what ya doin ?you gonna run semi pro classes again?jetting should b about the same but if it were me i'de bump the jets up a size or 2 and go from there.you might think about a bit bigger carbs also with the coolhead and domes.i'll see ya at nationals at bbdr hopefully.not sure about thunder valley though.

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hey butch what ya doin ?you gonna run semi pro classes again?jetting should b about the same but if it were me i'de bump the jets up a size or 2 and go from there.you might think about a bit bigger carbs also with the coolhead and domes.i'll see ya at nationals at bbdr hopefully.not sure about thunder valley though.

i'm thinking about it for maybe the end of this season or the first of next having to much fun winning in the class i'm in now, lol!

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