Dads has the 456 gearing on 33s vs the stock 410 in mine with 35s. so that's a hard call. I do like the manual with boost far better than his boosted auto though hands down. Did you ever get that pulley measured? Im trying to set up a little head to head between the 2 of us but its been pouring rain all day today and I just got called into work for tomorrow. Maybe the later part of the week will allow that comparison.