Hi Edwin. I live in Cork Ireland . and I buy from Jegs -Summit-Speedway-Competition Products .In that order.and have never had a complaint with The Chevy parts in my case or the delivery time, usually less than a week.
In my experience hot start problems are usually Carburetor related .I would start with the float level then have a good check of all the vacuum pipes.
I am assuming that the engine is cranking at the correct speed .