exactly. If u want a car that has lots of low end ur left with one option. Ls1. thats ur only choice. A turbo uses ur gas emissions from the engine to make power. there for the more power u want from a turbo the more lag it will have. Its a very simple concept. For a good all around SR with good low end and high end ur going to use the disco potato turbo aka the garret gt28rs. on stock internals it does wonders.
Just figure it out. Jap motors are more expensive in the long run for parts etc. an ls1 is easy to make tonnes of power. more power than a 240 would ever need.