building 273..or not

It's worth it.
I was in the same position, switch 273 with a larger small block, or rebulid? Chose to keep the 273, the reason is that I want something different. I'm in the middle of the rebulid right now. My recipe is as follows:
- Edelbrock D4B intake, 4 bbl dual plain
- Edelbrock 1406, 600 cfm intake
- Comp Cams cam part # 20-246-4, dur @ .015 270/270, 224/224 dur @ .050
- Electronic ignition
- Domed pistons, comp. ratio of 10.5:1
- Spitfire headers