Tired of DIY!

I tried to be methodical measuring pushrods and preload, but I bet I got it wrong somehow.
My pushrods are 7.550, I bet I'm not getting full lift, even beyond the standard losses due to geometry. I originally ordered them before the engine was together based on the math alone, but that was ten years ago, maybe they are too short.

Was running rich right before teardown, due to serious choke misadjustment. I cleaned them with carb cleaner, but wonder if they are a factor as well.

Just more info for those trying to help...