This ls2 is bumped up to over 500 horses and is what makes the Banshee scream - literally. Since there was a short delay before the ear-piercing noise began on startup, and another delay before it quit when shutting the 6-liter engine off, we suspect a vacuum leak somewhere which didn't get fixed in the rush to ready the car for the show circuit. But hey, that little hiccup made the Banshee moniker completely appropriate. Regardless, marvel the utter cleanliness of this Navajo-brake-booster-equipped engine compartment. And that's with a windshield wiper motor included, something not usually found on a tube buggy.