Good Post, NeighborsComplaint, 8.5" Power Valves are rarely used on any street cars but are used on delivery trucks and power boats where you need a lot of fuel quickly when a higher load is imposed on the engine.
If the OP could post up the stamped numbers on the air horn we could identify the exact application he has.
Tom V.
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"Engineers do stuff for reasons" Tom Vaught
Despite small distractions, there are those who will go Forward, Learning, Sharing Knowledge, Doing what they can to help others move forward.
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