Timing issue 360 LA

I was 99% sure we did the cam gear timing correct. But it is possible. I have never run into an issue like this so it must be something out of the ordinary. Now is there a way I can check this without removing the engine and tearing it down again. I have no issues doing it if I know its wrong, but to spend the time, and money on new gaskets to do it and its correct would suck Thx
I guess its not that much work, I was thinking taking the whole engine down again, heads off ect ect, but really I am just removing the water pump and timing cover.