I have used schrick 268 cams which were excellent, also used kr cams reground by kent to fast road spec, which weren't to bad. Cheaper option to schrick 268 are newman cams which are same spec and really good also. Cost about £300 for pair of newman About £400 for schrick. Not really no on extra bhp fitted mine when fitted 2lt block with flowed head. Could go up to 268/272 split duration bit lumpier more power, But more loss of bottom end torque.