Dennis consider the cast iron oval port high rise GM made for use with the Holley. I believe this was only cast in 65 or 66. I had two of them at one time and was pleased with it on my 70 Chevelle SS 396 car. It kept the stock look of the quadrajet intake, but hidden underneath the cowl air cleaner was the Holley and it was taller, not like the flat intake that came on the car. Sorry I can't remember the part number of the intake. I think pdq67 might know the number if he wants to jump in here.
"..............what, and get out of aviation??"