yer theres a lot more exhaust gasses with e85..
we did let him know and he said it was all in the tuning and it was left at that..
ive heard he was really up himself and always backs up his manifolds.. im all for feedback but only when it makes a diference..
ive personaly got a split pulse t4 6boost manifold and the wastegate is placed right in the middle of all the cylinders.. we are expecting this to work fine but wont find out for another coupe of weeks..