V viperhauck Member Joined Jan 27, 2007 Messages 281 Age 44 Location Sweden Jan 27, 2016 #1 Hi. Have any tried to bump up the hp/performance on these before? My plan is to mill the head and maybe raise the exhaustport. Any thoughts?
Hi. Have any tried to bump up the hp/performance on these before? My plan is to mill the head and maybe raise the exhaustport. Any thoughts?
