[Alfajay]

Tacconi had asked: "Ok so the 1600 105 engine is smaller outside?"

No, all 4 cylinder Alfa engines are the same width in the area of the bellhousing. So, I find it puzzling that your 1750 is interfering with the brake master cylinder. Are you sure the engine is located properly left-right?

The 1300 and 1600 Alfas used a smaller flywheel than did the 1750 and 2000's, so it wouldn't have been surprising if the bellhousings had been larger on the later/larger engines. But, they aren't. I took a sheetmetal block-bellhousing spacer from a 2L, and laid it on a 1600 bellhousing - all of the mounting holes line up.

On my 101 Giulia, with its original 1600 engine, the bolts holding the master cylinder do come very close to the side of the bellhousing. I am using normale mounts and cast-iron headers on my car, so my engine is not tilted toward the steering column & master cylinder as it would be on a veloce.

I have written before that people building "abnormales", might consider locating the engine in the normale position, and using some sort of an air filter that doesn't require the engine to be tilted toward the steering column. This simplifies many things. On my dual-Weber Giulia, I am using two, cut-down Weiand air filters. They are noisy, but they fit easily. This also allowed me to retain the cast iron manifolds (not that these are better, but I didn't have any veloce manifolds available), and provided more room between the block and steering box to install an alternator.