I spoke with edelbrock... they told me that cycling the key on will reprime the system... and that the sump would not hold pressure.. its just frustrating theres no " normal" settings for cold starts... like a base setting.. I'm not sure where to start with cold start enrichment or crank fuel.. its completely trial and error... also there seems to be a lot of debate with timing... 18 initial.. 12 initial... ?.. I guess I was expecting a more detailed set up/instructions..