Big Block Gear Drive On A Slant?

slantsixdan said
Maybe the answer's obvious—I'm not a gear expert—but why doesn't anyone make a helical-gear cam drive? Seems to me it'd be a whole lot quieter and maybe less backlashy than straight-tooth gears.

That's a good question, BUT.....the Milodon fixed single idler gear drives are quiet. They are straight cut. Don't ask me. I cannot explain it. lol