Hi, new to the forums here...I've read hundreds of posts the past year while building my car...found lots of info here, tremendous help!

I installed a new ZZ4 350 crate motor, and just started breaking it in. Went to set the timing and noticed a white paint mark on the balancer on the line at 4 degrees BTDC, It must have been put there by the tech at GM. Whats the deal with that? I know the ZZ4 should be set to something like 10 degrees BTDC. Does GM recommend 4 degrees? Anyone else have this white paint mark? I just want to make sure that its not there for some specific reason.

Thanks for your help.