small block 671 blower ?

Those blowers are an option. 142 can be used on a 318. For a 360, I'd use a 174/177 with a 10 rib serpentine drive, eliminating belt slip. Bill Laney of Max Wedge Performance in Australia has blower manifolds for those blowers. You can definitely use a ModMan intake manifold with a custom made top plate.

Do you have a website or contact info?
These little blowers give excellent throttle response.