I agree stick a 471 or 475 under it and be happy my only thought is with a 14cm housing a 1.10 would be better on the bottom turbo for quicker spool up.

that is true and would be a great option on a 75 to help it get going sooner, just a little more money to get that housing

yeah it may cost a lil more, but it's nice to be able to just drive and not worry about spool up

i agree on a vp truck for sure, the CRs seem to be able to get away with looser housings with some good tuning. i would only switch from an existing 1.32 tho if i was having a hard time getting the interstage boost that i was wanting

just speaking from experience no matter what injectors I ran it was laggy with my 62/71/14 over the 475 with the 1.32 housing.

do you think that the 71 turbine on the secondary had anything to do with it? or did you switch to a 1.10 on the primary already?