i am in the process of aquiring an australian compliance plated 1975 528 that sports, among other thing, a OEM BMW 4 barrel carby. Other particulars are a BBS front spoiler Chevoit mags and a rear spoiler. The duco is red with gold and black decals. If anyone can i dentify this car or engine please post. This engine number is not that which is stamped on the body, it starts with 4540????. Rego. SC 528. cheers... CKN