Gavril Engines AND SOUND! 10.5

This update changes the V6 and 5.6L engine, to make them more realistic. Better fuel economy for all engines! And stock sounds are now added.

Just a quick update, way more to come soon!

Gas mileage on the 5.6L and 4.7L are better, and I completely redid the 4.7L to closely resemble a PowerTech. It now makes 220 hp and 290 lb-ft.

Adds a Chrysler Powertech inspired 4.7L V8, and changes the powerband on the 4.0L and changes it to a 4.2L (inspired by the Ford Essex engine)!