I know for a fact. If you turbo charge the Monte Carlo you will have more wins and more fun in the street. But i thinking, You are considering drifting with the 240. The 240 does has equal weight distribution.
Any way here is the web-site to build a killer Monte.
Cartuning Performance 3800 Turbo Kit: 3800 Performance
I will post video of a customer 1999 GTP (supercharge) with only bolt on parts making 300hp at the wheels. the s/c 3800 is 280hp and the N/A 3800 is 200hp.