First time swapping a motor, don't have much experience

[mrcomedy104]

Would anyone be able to help? I know this might be easy to most of you here, I'm not very savvy when it comes to mechanics, I can do the usual maintenance on any vehicle, but this is the first time I swap a motor, so my question is, how do I align the motor to the transmission, it's in but it won't close all the way, I'm doing this on my own, moving the engine hoist and the jack from the transmission to align it but it's not going in, the motor is a 305 off a 85 camaro, and the transmission is a th350 off the truck 72 c20, would that be the issue?
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