Lexx slip on pipe

[Turboderf]

Hey guys Iam looking for help i just put on a Lexx slip on pipe 06 450er with a hrc kit and was going to jet the carb. iam running a closed air box the jet that i have is 128 what is a good size to start at iam in florida which is sea level i ride woods thanks for the help

[trx#9]

Hey guys Iam looking for help i just put on a Lexx slip on pipe 06 450er with a hrc kit and was going to jet the carb. iam running a closed air box the jet that i have is 128 what is a good size to start at iam in florida which is sea level i ride woods thanks for the help

140-150 range.