when i say i floored the car i mean put the gas peddle to the floor.if i increase the throttle slowly it still races to about 2000 rpms then drops to 1000 rpms then back up to 2000 over and over again.very predictable.also i changed the fuel pressure regulator.also removed the o2 sensor to check for a blocked converter.the exhaust smells normal.you cant make the go over 15 mph.it feels to me like its starving for fuel.my next trip under the car i'm going to check for a crushed fuel line.the engine roll is so predictable you could set a watch by it.i have had a ton of 240's over the years driving an 89 240 with 372 k miles but this one has me puzzled.thanks for everyones help roy