http://lukesracing.com/luksr/drz400_bigbore_stroker_485.htm i already have the kit just wondering if its any good. i have a fcr39 already and a yoshi pipe. i ordered a spare head so i can begin working on my +1mm valves both in and ex. its also going to be ported along with moldstar valve seats and custom valve guides made for the head. i have access to the machines needed to do this and my friend i work for has been doing this for years and has made a good name for himself for headwork so i feel it will be a very nice flowing and well built head. I'm ordering custom ground cams from web just haven't decided on springs and retainers. I've found kibble white but my friend has had problems with his race motors with them over the years but they run 15.1 compression. I'm also getting the valves made not sure if i wanna go 45 degree angle or jump to 50 or even 55 so ill wait till I'm done to order them. any info or advice you guys have please feel free to speak up.