doesnt want to go past 2k, then eventually goes past it?
check some motor mounts as well. i need to change mine, front and rear and if i give it full throttle from a stop, it gets sluggish, and feels like it just hit a brick wall or something.
i recently seafoam'd everything for the b15, and it seemed to do a lot of good. 1 whole can in the gas tank, 1 whole can in the crankcase for 2 days before oil change, and one whole can in the brake booster, 1/3 a can at a time for that. got rid of that hesitation.