I just went to my local Hardware store yesterday, and bought 12 metric socket head screws. For all my side covers. They seem to work better, seem tighter, and alot easier to work on. A lil pricey tho. I paid $9.20 for the 12. I have 2 more motors, thats close to 30 bucks for screws. Crazy. I ordered a intake manifold from jim at creative, and when I got it, he included a couple extra alen heads, so i used them on my muffler, and on my other motors intakes, looks nice, and seemed to be easier.