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So, about everybody knows the early 273 intake bolt holes story. Well, I'm doing it in reverse and putting an Edelbrock D4B intake on later model heads. If you have ever had to buy wedge washers to bolt a later intake to early 273 heads, where did you get them and are they round and wedge...

I have a 600 Holley that I am considering using on my 273 after it's built, and I noticed something odd about the vent tube for the front bowl the other day. I noticed the tube looked like it had been cut off even with the choke horn, and it was shorter than any Holley vent tube I had ever seen...