273 Cam Shaft Wear?

So I found 2 camshafts made by Melling

SPD-20 (stock replacment)
- 372/399 valve lift 180/192 duration @.050 110/108 degree lobe separation

and

MTD-1 (RV Torquer)
- 420/443 valve lift 270/280 advertised duration 204/214 duration @.050 112 degree lobe separation

"I installed the common "RV torquer" which is slightly more lift than the 273 HP solid cam (0.422"/0.444" I recall)." How did you like the RV cam in your 273?

I want to keep the 2 barrel BBD since it is the orginal carb. The big question is, would the RV cam kill this little 273? Or will it be the same motor we loved before with a little more getty-up around town?