Quote: Lot's of good suggestions. I'd add making sure the throttle plates are fully open with the pedal at WOT. If that's OK, I'd substitute in a different coil.
You didn't say "how" it falls flat. If it's draining the fuel line like in a plugged tank intake they usually just die and then when you back off they start back up in my experience. If the acceleration goes flat with a burble it's the rev limiter kicking in if it cuts individual cylinders. If the limiter is the type that kills all spark it want's to put you through the front window.
Just some more ideas, hope you find it soon...
it sounds like it just starts breaking up with a fast loss of power,let off and its fine. runs great up to 5ooo fine after.idles perfect,starts easy all the time.great running engine other then the 5 grand limit. there is no rev limiter. the coil is old though,sound like it could be a coil? it's a blaster 2. I thought coils just took a dump and that's that.
