That's why I asked if the Edelbrock 1405 was a square bore carb (standard pattern)- I didn't have an Eddy to try —- Yes, I did try it before I ever responded.
So you tried it before and did t know the Edelbrock was a square bore carb... yeaaaa, OK....
And then you said you tried it before.... so then you would know it works...... I know it works. Hey had it on top of a ‘79 OEM 4bbl. The car also had a 904 & 2.76 gears in the 8-1/4 w/26 inch tires. I’d get 20 mpg’s out of that.
It’ll fit.... I’ve done this and used it for 7 years like that.