Once you're up and rolling, it should light super easily, being the 87mm tw and the tightest housing available. No matter the converter you run. I'd say your tuning needs serious adjustment using MAF limiters beccause it must be overfueling and choking/stalling any turbine wheel momentum out with too much fuel. Its normally an area that needs a decent amount of tweeking on a serious setup, let alone with 400% overs.
Looks good!!!!!!