Hi, I'm getting my engine rebuilt soon. It s going to cost me $1500 and I will have about $500-600 extra. What sould I consintrate on upgrading with the extra money?

I was think about getting a Summit cam and better pistons. But, I'm really new to this so I need guidance.

And if I am to get a different cam do I have to buy a chip/ burn my own prom?

After the engine is rebiult the internals of it will probably never be touched again.

Any help is appreciated.