Hi guys. I'm considering installing a 90c.i. big bore kit on my 2003 Sportster XLH. I've done engine work on my previous Dyna but new Sportsters. I could use some help on figuring out which cams, stock carb or upgrade, ignition and any other shop tricks out there. Can I use the stock heads with mods or go with new performance ones? I've read the threads in the past and you guys are great. I just joined and looking forward to being a part of HDTALKING. Any help would be great. Thanks Kirtap4