Why are people still upgrading from the T3 to the T34 and not using the more modern Garrett GT series turbos?.
Just curious as Im looking at replacing my standard T3 turbo on my 1988 Sapphire and going to either a T34 or a GT roller ball turbo.

What are the pros and cons guys as I've heard the GT Roller Ball turbos spin-up 40% faster than the T34 so there's heaps less lag.
Or will the GT Roller Ball turbos rip my standard block to pieces?