I'm getting this tall adaptor as AJ suggested, hopefully the seller ships asap.
Once I get the part, I'll install the 241, finish the drive train mock up and see where things really are.
If the valve covers are to close, I'll move the combo forward, if not, it stays.
After all the debate, I'm 99.9% sure the motor is in the correct location, it's just the tall covers making the difference, as has been mentioned.