Yup, I seconfd that. I have a Edel 750 on my 455 w 041 cam. Not impressed acctually. I had this same carb on my SBC in my truck years ago, seemed way more suited to the SBC. I never even did any tuning on it in my truck. On the 455, I have tinkered with it for way to long. It's coming off this morning acctually, been working all week preppin a Q jet