I'm trying to figure out why? But I do have a 3 outlet deal designed for logs/snails??? But is really unncessary unless running a T-Stat or a closed cooling system as I can see the things (I have 3 of these things, apparently a Harmin Marine deal with weird water pump covers too).
Every intake I've ever seen for BBF have two outlets on the intake in front of the T-stat housing. 1 usually plugged with a pipe plug, the other, on aluminums anyway, usually a press in deal that I pull out and then tap it 3/8 NPT and put a real fitting in there.
The "cobra jet" style cast iron marine intakes I have have the temp sender in one of these holes, and a freeze plug in the other. Tap the freeze plugged one out to 3/8", bush the sender one down, and use a normal t-stat cover with the temp sender in it.
1 outlet for the headers, one for the O/B dump. Or both to the snails if that's your setup.
Ray
