This is my first post but I've been lurking around here for a half year or so and can't seem to find an answer to a question. My 77 FJ40 w/ 2F engine stalls only when I floor it- hot or cold, and then only when under power. With the clutch in, the engine revs just fine. I have put in a new fuel filter and pump, timed the engine, new points, plugs, etc. It ran fine for the first six months I had the truck, then one day this started. Any ideas??? Thanks!