[Leftyarmstrong]

Thanks guys. Turns out it wasn't the heat tube. It was the gasket itself that was leaking at the top of the port on the passenger side right where that tube loop is. I laid the manifold on those heads without the gasket and the fitment looked dead nuts. With the motor on a stand I took my time laying up the gaskets using the orange retainers and carefully set the intake. I used brand new bolts and AN washers and torked it down in a carefully orchistrated star pattern, settling on 45 ft lbs. It leaked. Pulled the intake and it looked good everywhere except right at the top of the exhaust port on passenger side. I could see the carbon where it was leaking. Been advised to reinstall using red hi temp silicone but I'd really like to block that crossover (I'd use an electric choke) so if anyone knows the trick gasket let me know. Thanks, Don