alright been doing some searching and it seem that i could put a s400 under my s300 (like rips twins) its none wastegated so i have i adapter which i think would give a good amount room hopefully just wondering if it would be a possible route i do some truck pulling and i do some hauling and it is streeted and want to move up to bigger injectors someday ddp/machs 150-200 what does anyone think

 

I think that was a very tough sentence to read!!!!
You don't have enough fuel to justify twins. You will be dissappointed until the injectors are in.
Some truck pulls don't allow twin turbos.

 

I have a 3b and a 400 both in twins. The 3b with a 22cm housing makes a great towing setup, spools instantly. The 400 is a little slow, its over a b1. I really like the 35-3b setup for the street,the b1,b2 isn't bad but not as fast as the little twins.