None of you have given the right info on the T35 type Turbo's as you dont understand what the difference is.
A T34 is the Esc Cos large Turbo. The Exhaust housing makes no diff to this. It could have a .36 .48 .55 .63 etc.. and it will still be a T34 Turbo.!!!
A T35 has a different compressor wheel and housing to the above unit. It flows exactly the same amount as the T34 but has less lag time due to the shape and design of the housing and wheel. This is the reason that i use this type Turbo on my conversions and some engines which would suit this size turbo.
If you want more info there is a thread on my site which shows pictures of the items and results on a car which has been tested with 3 different types of turbo's
T34 - T35 - and a 4x4 Cosworth Unit.
The results and graph speak for themselfs
Regards
Jano