Joined: Jan 2010
Posts: 9,809
Likes: 1,784
From: Northern California
Bikes: Cheltenham-Pedersen racer, Boulder F/S Paris-Roubaix, Varsity racer, '52 Christophe, '62 Continental, '92 Merckx, '75 Limongi, '76 Presto, '72 Gitane SC, '71 Schwinn SS, etc.
You will have to sight down the sides of the installed chainring to see where to go from there in terms of chainline.
Spacers used under the bb cup or to either side of a single cog are typically needed to fine-tune chainline so the chain won't fall off.