Speedo a little off

[CBrahs]

I finally found out how far my speedo is off :-laf . We had a meeting tonight in Sante Fe and on the way back a buddy of mine was following me in his powerstroke and I called him to see how fast we were going when we ran up on a state cop!! My speedo was reading 65mph I called him and checked how fast we were really going and he told me his read 78mph :-laf . Just had to share that with everyone!! Oo.