Hello All, I have completed a swap of a 1993 5.0 into a 1966 convertible. All has gone as planned except I have an idling issue. The engine starts okay but after it warms up, it wants to lope almost to the point of dying and it seems that the idle speed is a bit too high. I have checked the voltage on the MAF and it appears to be in tolerance. I have not checked the voltage on the TPS yet. A friend suspects a vacuum leak but it is hard to check for with the intake plenum in place. With the plenum removed, we can find no obvious leaks. I'm hoping that someone has had a similar problem and can steer me in the right direction to remedy this situation. Any guidance would be appreciated.