The exhaust gets cherry red when sitting idling and will barely tach up or drive in gear(manual) . The cam/crank are in time as well as thedistributor. Cap, rotor, plugs and wires thrown at it with no luck. Compression is within 10% of high and low cylinders. It has a ticking noise that sounds like a valve out of adjustment but the valves are not adjustable on this engine. The noise is not heard when the engine is first started and the enigne will tach up quickly as normal but after five minutes or so of idling, the ticking noise appears and the engine will not tach up and exhaust gets red hot. Exhaust out the pipe is clean and not black and does not smell overly rich. I've seen some posts elsewhere mentioning distributor not advancing with engine rpm making for a way retarded timing and red exhaust. I've seen injectors mentioned too but I'm trying to figure out what the ticking noise has to do with the driveability problem. Could a bad injector sound like a valve out of adjustment? Timing chain, guides, sprockets and tensioner replaced due to a broken slack side chain guide. Any ideas???? Thanks, no one.