Yes it is a 750 holley vaccum secondaries. It is just the way it came out of the box. It hesitates a little when i floor it but i did not try adjusting it or rejetting it yet.
Its surprising how well a stock 1971 360 runs with a 4 barrel. The motor has never been apart. Only thing i did was change oil pump and valve stem seals. Its way better than the 318 it replaced.