in my 240z, i have a L28 with dual webers. the gas pedal seems like it's kind of hard to push; hard enough to make you push down harder, then it kinda gives way (not that im really complaining...oh, how i love the sound of that straight six ). would some 6 in 1 oil on all of the linkage joints help? i dont know if it would help it or hurt it...

also, i used some engine degreaser, and now my valve cover looks like wizz! what is all of the yellow, flaky stuff on it? the oil fill cap is peeling as well...

Check to make sure that your return springs are not binding or getting twisted/kinked as you move the linkage. It sounds like it may be and then it flops over the bind and... whoom. Also make sure it isn't your linkage that is binding or twising. It can't hurt to hit the joints with oil to free them but make sure to use a good lubricating grease as it will last longer than 6-in-1 oil.

well, it doesn't really stick...it just takes some effort to push on it...

Maybe your return springs are stretched too long or they are too stiff. I guess start with the easy thing and grease it up.