Edelbrock LD4B

I have managed to get an LD4B intake. Right now I'm using a 500 cfm Edelbrock. Do you think that's enough carb? Seems like a lot of people are using 600's. Haven't been able to try any engine work as It's getting some paint.

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Looks good. A 500 should work good on a 273 build. I have a 600 Edelbrock on mine and it works well too. If you are going for more horsepower and like to mess with tuning, you could tune what you have or try a different carb. But saying that, you may only gain a little horsepower. May-be not enough to justify the time and money.