A year ago, when still in high school in San Bruno, Calif., Wally Bunker waited patiently for offers to sign with the Angels or Giants, the teams he most wanted to play for. Seventeen clubs made bids, but not the Angels or Giants. Disappointed, Bunker accepted a bonus from the Orioles for some $45,000. Because the Angels would not pay the price for the young right-hander last summer, they were forced to pay it last week. Bunker beat them 5-1 with a four-hitter, his second win of the week and third in 11 days. Five days earlier he had defeated the Tigers 7-1 and on May 5 he held the Senators to one hit. Explaining Bunker's success, teammate Harvey Haddix says, "His fast ball has a natural rise—the toughest pitch in the business." Although he does not yet know the names of some of the hitters he faces, Bunker has the best ERA (0.67) in the majors. At 6 feet 2 and 190 pounds, he has already been nicknamed Bo because he looks like Bo Belinsky of the Angels. Despite his sudden transition from high school to the major leagues, Bunker, who is only 19, has not shed his boyishness. Of the pointed black boots he sometimes wears, he says, "They're my Jose Greco shoes." Then, raising his hands and clicking his fingers, he cries, "Flamenco!" Bunker is not averse to spending money on colorful clothes, yet when he called his parents to tell them about his one-hitter he reversed the charges. Mr. and Mrs. Bunker, unlike the Angels, were only too glad to pay up.