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The only vac line you need goes from IM to FPR, I believe. Cap everything else.
Remove:
EGR, EGR pipes. Use block off plate and large plug. Do some google searching about the part #, you can get it from Nissan.
AIV, AIV pipes. You need the same size plug as for the EGR pipe.
Butterfly valves (if applicable, they shouldn't be on the S14 engine). Plug holes on IM. And remove plate with hardlines behind head.
Carbon canister, remove lines up untill the hardline by the firewall. Leave this line OPEN, unless you want to die. Okay, you won't die, but your gas tank will.
There's probably more, but I don't remember.
As for the two hoses, I don't see why you couldn't loop them if they were in a loop before. Blowing the HG could have been any number of things. Did you have timing right? Did you overheat? Did you properly bleed the KA? Were you beating on it? Did you install an electric turbosupercharger? Is the engine old? Etc.
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