Am new to the part of the sport dealing with building yourself but am gonna try it. I am pretty sure that if I take my time, and think things through I will have no problems. Was just wandering which would be a easier platform to modify. Gonna be looking for a drag oriented build. Either a Raptor 660 or a YFZ 450. Just wanted to drop in a stroker crank, drag pipe, just the basics but i wanna do it by myself. Is there anything that I might need to know before starting this project. Like will there be any porting, or timing issues that might change with just dropping in a stroker crank. But i want to start with the easier platform just for the learning experience. Sorry for all the new questions, just wanna get into the sport a little more seriously and do my own work.( I think it will make me feel alot better if I can do something like this and it turns out to be a huge success) Thanks for your time. All input would be greatly appreciated.