what jets should i use?

[panther83]

I'm trying to to build my blaster and i'm not sure what size of jets to use. i'ts bored to .40 over, port& polished, fmf gold series exhaust, k&n pod filter, reed spacer, and carbon reeds and i'm using a stock carb. what jets should i use? any help is appreciated, thank you.

 

[hickskateboarder]

i'm runnin a 350, we have similar mods, try one that size then run it for a little and check the plug.

 

[quam]

there's no way for anyone to tell you precisely what jet size will be perfect for your setup.
it's not just the mods that affects the jetting, there's also altitude, ambient temp, atmospheric pressure, barometric pressure, etc.....
but i WILL say that the 350 sounds huge for the stock carb.
i'd say start at 300 and see what your plug has to say about it at FULL throttle.

 

[xxxalpinexxx80]

i agree 350 seems to rich

 

[chris960]

I also agree for the mods you have start with a 300 and go up or down.