Hughes Engines 1.6 Rocker Geometry/Setup
Nice! Your lucky, what heads are you running them on?
Don’t count on luck. Just because something runs doesn’t make it right.
To correct the geometry the shaft needs to move up and away from the valve. Those flat shims don’t do that. They raise the shaft which actually makes it closer to the valve.
Guys have run this stuff with the geometry wrong for decades because there use to be only one option. Mill the stands and use offset shafts and blocks.
That was until Mike came up with his shims. Now it’s a no brainer to correct geometry.
Of course, you’ll still have the folks who love dog turds more that donuts and they‘ll do everything to grab a dog turd any time they can.
Leave the turds alone. Have Mike hook you up. Your valve train will thank you.
Also, a centered sweep pattern isn’t near as critical as getting the sweep as narrow as possible.
My sweep is .035 wide. It’s not quite on center. I think my correction was .425 but I can’t say that for sure. I can measure the shim tomorrow if you want. I have a fairly big correction.