Thanks for the info, I'll try it..
As to the diffrence, it hits extremely hard in the mid-top end, like way too hard, I should have never done that port job as I was expecting a little more not a cr500X2 hit. But, it didn't lose very much down low, infact, I have not even noticed a loss in the low, but I did purchase a Gnarly pipe and a flywheel weight if I want a bit more low-end. If you like hit, I recommend this kit.. I also sent off a head I got off Ebay for race gas, a high compression head for racing and gasket. It's soo m uch better, hardder hit and more low-end. But, from my friend who has the same Big bore kit, with a low grunt package port job, it's much better with just as much top-end as stock. Just more low end. I dumped the 19inch rim for a 18 inch, I am only running a 110/100 tire. But it hooks good enough, I run mainly wide open, with is now a fear I have. .
It's too fast up high. I like the stock pipe so far, from the Fatty vs. Gnarly vs. PC plat. I know they make a dune pipe, but I honestly think the stock is just as good. I really like my KX, but it is worthless in the woods, I just change the sproket, throw in the flywheel weight and I hit the woods, but it is still too powerful. It's worthless at the track, as hitting the powerband is suicide in short runs. All in all, I love the power. Just after owning 500s for about 5 years now, it is still deadly fast and too powerful to me, it makes my cr500 feel kinda weak. :-/ go figure. I really recommend Eric Gorr in any big bores/port jobs. He does great work at a awesome price. I believe I paid $400 total for the package, (piston kit, gaskets, big bore, port, head work, ect. ect.), I did have the bottom end redone totally by him just incase.
So, I'm happy with it. Just not my everyday ride.
Thanks again for the info, I am going to jet it when I get off work tonight and hopefully it will run better, (quit smoking)..