318 +.030 Dieseling

So I got a vac gauge and timing tape. This is what I found.
Idle 10 btdc
21* at 1650
23* all in at 2850
These with vac advonce plugged.
Found ported vac had 5".
Went thru and set idle with vac gauge to 850 smooth, 600 in gear and vac dissapeared from ported.
Set initial timing to 15* btdc.
26* @ 1700
28* @ 2850 all in.
That would be all mechanical advance.
Then went to vac and immediately found bad diaphram in dizzy.
Crap.
Will have to get one ordered.
Question is can I run it Friday without the vac if it doesn't get here in time?
And if so, what will I need to change if anything?