I'd like to add a few tid bits.The autocars come with turbo parts ,so by kit bashing the turbo with the non turbo intake manifold you would have a 335.I like horsepower so I call the nta370 an nta 420.Those nta's came in 370 up to 420 in 10 horsepower increments .You can turn the cruiseliners 300 into a 315 hp 300+ by painting it a redish copper colour.For a period of time Euclid owned westernstar.During that era engines were Euclid green.