Yugo 1300 or X 1500 head???

DTohill

80 X1/9 Carb
Ok, I have a 1500 out of an 82 X that I plan on putting in my Yugo. I already have a lot of performance parts ready. (40/80 cam,adjustable cam pulley, single 40 weber carb, 4-2-1 header, and free flow exhaust.)
The only thing I'm not sure about is what Head to use.

So, which one should I use?? The 1301 Yugo head or the 82 1500 X head??
 
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