[68 C-10 KID]

I'm a working man like your self. We are not rich so we can't afford to buy things twice.
The best advice I can give to you is never never cut the budget short on heads. If it takes another 4-6 months to save up for some AFR's I would recommend doing it.

AFR's are the best 23* head for the buck.
If a guy does the math on a complete head re build and port work your not that far off from a set of AFR's.
If you go better heads now there is always room for motor improvements later.

JUST my 2cent.