moving the motor forward

[spookylynx]

So to start Its a '65 c10 and I am going to put in a 350sbc / 700R4.

I am going to move the motor forward to the front position for two reasons, 1. I like the look of not having the distributor right up against the firewall.
2. the 700R4 should fit in a bit better.

I have been reading all the threads and FAQ sections, the only real question I have left is:

When you move the motor mounts (I'm using the stock ones) forward to the front holes, do they stay the same distance apart? or do I need to add spacers?

have seen 1 person use 1/2" spacers under the mounts, but most havent.