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400ex Port & Polish

Old May 16, 2000 | 06:26 PM
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Is this really worth the while. Right now i have 10 to 1 piston over bored to 401, web cam, titanium valve springs, new rockers, ct exhaust, and rev unlimiter.
ONE more question is what should i change the jetting to with these mods that i have for the stock card?
Thanxs, alot
MATT the MAN
 
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Old May 16, 2000 | 06:32 PM
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put in the 155 and go from there
what alltitude are you at?
 
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Old May 16, 2000 | 06:36 PM
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sea level to about 500 at the most.
One place i ride is actually 5 feet below sealevel because it is in a vally.

What should i do with the pilot, and the needle.
with all the mods i have don't u think that i should go a little up or what?
What abou the porting is it worth it?
 
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Old May 16, 2000 | 06:36 PM
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i forgot about the port and polish ?
well mine is bored to a 426ex 11 to 1 compresion,
web cam, k/n, dyno jet kit, 6 air box vents,
3 angle port job, ids-2 super trapp pipe.
and it hauls ***!!!!!

i had all mine done at once so i would say that it is worth the money
 
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Old May 16, 2000 | 06:40 PM
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Me to it is all being done and i am going to put it together later this week and wanted to know if should get it polished and get the exhaust and intake ports matched. I should keep the intake rough for better mixing right?
 
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Old May 16, 2000 | 06:42 PM
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my buddy has the same work done the only thing
differnt is he does in't have the dyno jet kit
he has in a 155 main jet, the needle he did not
change, pilot screw to a 42 (stock is 38)
and the air mixture screw 6 turns out
(stock is if i can remember right is 5 and half turns out)
 
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Old May 16, 2000 | 06:46 PM
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i dont know any thing about the intake
call this #(740)654-0734 i just got off the phone
with him 10 minutes ago about my rev box
o and i have a rev box on it to
he will tell you what you need to know
the place is called pro fab atv
 
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Old May 18, 2000 | 12:19 AM
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match them up and keep it rough. worked great for me.
 
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