230i6 to a 350v8 mount question

[6twenty5]

I have searched and found a couple of threads that touch on this but didn't find a definitive answer. I have a 64 and I have removed the 230 and have a 350 to go in. I have also purchased new motor mounts that are the same as the ones that came off of the 230. With the HEI distributor that I plan to put in, am I able to run the stock mounts in the stock locations(back two holes) without modifying the firewall?

This is how it is set up as of now:


Thanks