Fueling change with MJ ?

[B@man]

Hi Again,

I read on the LR4x4 forum that a couple of people fitted their V8's with MJL and they ran lean due to the better spark giving a more complete combustion - anyone else had to alter their fuelling after fitting MJL ?

Reason I ask is I'm already maxed out on the Fuel rail pressure to get the stock setup to give the correct AFR, If further mods need MORE fuel I need to swap out the injectors first, they are on the mod's list anyway I'm just trying to establish if the MJ can be fitted before I upgrade the induction / injection or after !