(1992 Vette, LT1, 236/246 cam, LT4 heads/intake, 9:1 CR and V7-YSi, open-loop tune)

I am trying to improve initial startup performance on this car - it cranks and fires just fine but after a few seconds it struggles to maintain idle and threatens to quit. AFR on my wideband shows 12-13:1 during this time so I believe it's too lean. On a 80-degree day the car will usually idle like a pig for about 30-45 seconds and then settle down, after which it runs great.

Question is - how soon does the startup enrichment table (startup enrichment vs. coolant temp) time out, will it cover this initial 30 - 45 second window? ..or should I fix it in the open loop tables (Open loop enrichment vs coolant temp).

Thanks!
Andy