Complex sentence: The TI/SA's engine had dual Weber DCOE-45 carburetors and a 10.5:1 compression ratio, with at 6,100 rpm and at 5,250 rpm.
Split into simpler sentences: The TI/SA's engine had dual Weber DCOE-45 carburetors and a 10.5:1 compression ratio. This engine produced at 6,100 rpm and at 5,250 rpm.