[airvolts]

Radiator and fans have both been changed car was getting too hot with the stock units, after upgrading both, the engine runs at 90c all day. As for the engine being too heavy, I was told since just about everything on the engine except the block was aluminum that it would not weigh much more than most stock engines. I don't profess to be a engine expert, and I just use the car to play around and enjoy, the engine combo is great and runs better than I dreamed it would.