With its organically ornate parks and arboreal landscaping, Antioch Road ranks among suburbia's most scenic cruising strips. But one corner house in particular has the power to make even harried commuters stop and stare. Using chainsaws, Todd Baker, who lives at 8040 Antioch, carves tree stumps into 7-to-8-foot-tall Easter Island-style heads. The seven in his front yard bear expressions that range from quizzical amusement to open-mouthed astonishment to stern admonishment. Angled, colored footlights in front of each sculpture give the giant faces a mystical glow.