Growth hormone and insulin basicaly opose each other, so more insulin less GH and vice versa.
Peptides should be taken sometimes between 1-1.5 hrs after meal depending from digestion and glucose metabolism etc., for most of foods 1hr is enough, I think baked beans are the worse as they can raise insulin even after 1.5 hrs.
After taking peptides, you should wait 30 mins till next meal, or even less if its pure protein meal like steak... Remember that whey protein can actually cause quite an spike in insulin, so dont take whey protein with peps as some people do.