Need For Speed :: San Andreas

I've had so far 2/2/2 Counthash. When I bought level 3 engine, transmission and ECU, score changed from 454 to... 370.

Another bug is missing engine sound when gear is changed to fifth.

Does reconnect help?

No. I've tried.

Tell me whole setup

Engine, Transmission and ECU - Pro
Rest of parts - Race

Edit: I've bought Pro tires, supsension and brakes and these two bugs are gone.