5kt injectors leaking, or what??

[only5kgt@uswest.net]

I had been enjoying the thread on high revs and longevity,
chuckling to myself that the venerable 5kt must still have a
lot of life in it yet. I shift at 4500 almost all the time
and have 195k miles, good compression as of a few months
ago, and nil oil consumption.

That is, until yesterday at work, it seemed... I fired up
the car to leave after it sat for 10 hrs, I had to crank a
little while, and it came to life on 3 or 4 cylinders, or so
it sounded. A few prods at the pedal, and things smoothed
out after a few seconds- but not without a glance in the
mirror to see big clouds of blackish-grey smoke (sigh...)
this soon dissipated, leaving only the odor of gas (like a
carb car in the early morning).

Am I right in thinking injectors leaking down? It didn't
smell like oil, and the car behaved normally today in the
same circumstances. I really hope it was some anomalous
rich-running condition and not the K26 finally giving up the
ghost. BTDTs, anyone?
Regards,
Rob
87 5kcst, hopefully long for this world...