WTB: Correct th400 kickdown switch for 70 bb

[kaphillips]

I have a 70 cst big block 1/2 ton truck that is missing the carb mount kickdown switch for the th400. My question is did all 70 big block use a unique 4 barrel connector switch on the carb that had spark arrest. Are did some 70 have no spark arrest and use the more common carb mount 2 spade connectors. Can multiple people with 70 big blocks see what is original for me. Spark arrest type or non spark arrest carb mount switches. Thanks people.