Yeah Bob, But when I called and talked to Howards about it, they practically begged me to send it to em. Haven't heard back yet, but we got the Holiday here. I was going to groove it, and have the holes drilled properly. We'll see how obtuse, they want to be.. Meanwhile, I'm debating about pulling the crank for a polish.
I wouldn`t think the smaller hole size would make any diff. if grooved. they would supply more than the .030 groove could flow anyway. I`d be more afraid of making the groove too big or deep. I know about too much oil to the top end ! LOL