How do slants fit in righthand drive cars?

Yes slant six Dan is mostly correct! We use a steering box on the right hand chassis rail with the pitman arm and idler arm pointing forward not backwards. As the chassis rail was never designed to take that loading CAL put braces inside the chassis rail but they collected dirt and caused rust issues that caused very erratic steering later in life. After the Hemi six came out in the VG model (1970) the booster was an inline on the Hemi six and a offset and raised bracket for the V8 and I have seen a slant six car with the V8 offset booster fitted and clears the slant six rocker cover. Our V8s all used center outlet ex manifolds as the US ones will not fit in our chassis. We have our own header makers that are all 4 into 2 into one headers but a guy here sent a front cut valiant to TTI in the US and they made a 4 into one set for us but by the time they were sold in Australia they were over $1600 Au dollars.