Depends on what range you're operating the car in.
How many rpm's do you plan to take it to? What do the heads flow at .500 lift? Are you willing to sacrifice a little responsiveness down low?
As we all know, your ET is going to rely heavily on your 60' times, so, you certainly don't want to go too large and give up the bottom end thrust. I remain with the theory that you don't need a huge cam in our cars, and have found mine to run better with a medium-sized, semi-conservative cam, as opposed to a big honker. I've also stuck with split pattern grinds, per the advice of my mentor who has studied cam design for 20+ years.
Although, there are plenty of folks running exceptionally well with single pattern grinds. I think your suggestion of the 218/218 is a notable choice, as long as it fits the parameters you're seeking.
All in all, you need to determine the factors listed in the beginning of my rant, and design a cam around those specs. Remember, it's all about area under the umbrella. You're obviously going to be operating between 3500 and ????
By all means, I don't claim to be an expert on this cam though, and hopefully someone else who has used it will respond. I did notice that you're running 50's injectors, which will most likely not support your goals either. Just keep that in mind too.
