4492011
ArboristSite Operative
Hi I would like to tweak my 7900 without cylinder porting. I think that the biggest question that I have is if I remove the cylinder gasket to get more power what would be the minimum squish measurement if it were run on premium pump gas using 40:1 mix of mobil 1 2t oil. I have messed around with snowmobiles a little has anyone tried to just take a little off the intake skirt of the piston? I have modded the muffler at this point just looking for a little more.