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I know that modern vacuum boosters use a large hose to the manifold, probably to be sure that the booster gets recharged with vacuum quickly, but I'm thinking that the smaller vacuum wiper connection would work OK. If you were to put a vacuum canister in the system with it on the booster side of the check valve, that would give the booster more volume to work with, but unless you're planning on entering road races with multiple full throttle - full brake events, it should work fine. Another canister on the wiper motor side of another check valve should keep the wipers going for short WOT events. Don't know if you saw my vacuum canister install, but I used an empty propane cylinder.