ɪn ˈɜːli nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi θɹˈiː ɐ mˈɑːdᵻfˌaɪd vˈɜːʒən ʌvðɪ ˈɛndʒɪn wʌz ɐnˈaʊnst ðæt hæd ɪmpɹˈuːvd vˈælv tˈaɪmɪŋ ænd ˈoʊnli tˈuː kˈɑːɹbjʊɹɹˌɛɾɚz bˌʌt ðɪ ˈaʊtpʊt wʌz ˈʌp æt .
In early 1933 a modified version of the engine was announced that had improved valve timing and only two carburettors but the output was up at .