secondaries hitting intake

Yep! These carbs hold the fuel to close to the intake, and it is a must do to use the gasket RustyRatRod is talking about, got to keep the heat off the base plate... I don't know way they don't ether Rob :-?

Yep, and the reason they don't include it is probably because they would have to charge another 15 bucks for thier manifolds.:D