1985 280SEL. Spark plugs, wires, and distributor cap were recently replaced.
Engine and trans were swapped from a 78 280SE euro. Whatever is missing from this photo was taken from the original engine:
The car dies when hot and idling with the A/C on and in gear. Switchover valve suspected, and it's not even hooked up.
Where do these vacuum hoses hook up to?
A few other vacuum maladies:
This is not hooked up to anything.
Nor is this:
This is plugged:
A few more details: Cold starts are immediate, hot starts require giving it some gas. Seems to be running rich and eating fuel excessively. Has a misfire every few seconds MOST of the time but not ALL the time.
Any guidance on these issues would be greatly appreciated.