Another option with your current manifold. Remove it, drill the broken nipple / hole to a little larger size, tap it for a brass NPT thread to barb fitting available at any hardware store, and screw in the brass fitting. Adapt the hose to the barb fitting. You can put JB Weld on the threads for extra strength. Of course, replace the gaskets. Even if they dont leak now, they eventually will assuming they are original.
05 Taurus SEL Duratec - my daily driver
04 Taurus SES Duratec - wifes car
95 Taurus GL Vulcan winter car
Toy #1 - 86 Tbird 5.0 (original owner) - LOTS of mods
Toy #2 - 88 Tbird Turbo Coupe - LOTS of mods
02 Pontiac Grand Prix GT
67 Honda 450 Super Sport - completely customized