Dont powder coat the inside of the valve covers. If you want a S366 make sure you get a T4 housing. BD is a T3 it will hold you back.
How exactly will it hold you back ? Max'd out went 9's with the t-3 in use still in a twin setup . And to jump up to a S400 platform you will be giving up Spool , and drivability along with loosing the internal gate so twins are now much harder to add on , and alot harder to tune with an external gate . For a pure comp truck , ya i would choose a t-4 turbo and twin off of it , but for a DD i would use the S300
an yea i was wondering bout having a t3 maybe i can call bd an see if they will swaop me out the t3 for a t4 still waitng for dan to call me................so hey can change my other mind once again
They don't make a t4 S300 , the t-4 s300 is a S400 just labeled different by bullseye ,Be careful who you take advice from, I would stick with guys who have actually ran the turbo they are suggesting .