Fpr and btm 6

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stormydart

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Where does the vacuum line go to vacuum or the hat for frp. Its a blow thru setup and I’m new to this. Got the btm 6 used and can’t seem to find info for the vacuum signal. I tried looking it up but get different answers. Thanks
 
BTM reads manifold vacuum or the hat, fuel pressure regulator goes to the hat.
 
FPR will go to the hat since that is what the carb bowls are going to see at the top... as far the timing controls, I have mine reading from below the carburetor, as that is what the engine is seeing.
 
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