If I remember correctly I think our member rolnslo dynoed at ARD a while back which use 248x and got the same low stock result around 225-230rwhp, but I think yours is the lowest I've ever seen a stock camaro dyno but what matter here the most is how much you have gained and the gain look really good
Do you happen to have the graph from both of the runs so we can see how much gain there is off peak.