Plug Chop on Toomey Needles, what do u think?

[SUBZERO25099]

Here are my details

Toomey T6 Pipes

Uni Air Filter

(12) Uni Air Filter pods cut into the airbox (Toomey Suggestions)

Vforce 4 Reeds

Vintos +4 Timing key

Toomey Needles

Trail Tech Vapor

750 - 1000 above sea

75-80 with low humidty

 

I jetted to there specs

25p

air screw 1 1/2

4th clip in there needles

280mj

 

now i have

27.5p

air screw 1 1/4

4th clip there needles

300mj

 

with there jetting i had to have the air screw .5 turns out just to take off without killing it.  after changing the pilot i can see what a difference it made!!  pulls the front end up quick with just a snap of the throttle, when driving at low speed and low rpm and u snap it 1/4 throttle its either trying to lift or busting the tires loose!!  low end is excellent i think.  now the top with there jetting seemed lean to me??  when i was in 6th gear driving down the road it would almost instantly pull up to power band and take off right now.  and i mean mean like at 4k then u would snap the throttle it would hit power band in less then 2secs and rev out quick.  now im not sure if it should be just that quick?  felt like in 6th gear it would max out on speed and rpm in about 6-8 seconds.  does that sound right?  i jumped to a 290mj and seen the rpm power band jump from 5500 to around 6500 rpm, but it pulled longer in each gear.  i went a 300mj and i didnt notice much difference until i hit 6th gear roll on which required the machine to work a little more then to hit powerband, which of course its richer.  my top speed from a 280 to 300 went u by almost 7mph.  according to the trail tech that was around 69mph now.  so my question is how should 6th gear pull?  should u hit it and scream right away?  should 6th be a road gear and take a few extra seconds to open then hit?  with this 300mj i went up a hill in 6th gear lugging it wide open throttle and it never chugged or spit once.  the temp was at 175 and the hill was around a mile up or better to the top,  i did this plug chop down the road.  what do u think?  thanks for any input!!

 

 

 

[thomas h.]

Plug looks good. I wanted to say that a 300 main is good but 32.5 p is also recommended.

[thomas h.]

32.5 is recommended with open box and a proflow k&n.

[moledigger]

Main Looks A Little Fat. Try A 290. Smoke Ring Should Be About The Thi Kness Of A Dime.