Alright thanks for all the help GRIFF. When I am shopping for them DART heads I need to go with the 72cc correct?

 

Yes that is correct. If you do happen to find a good set of aluminum heads it will give you a little buffer as far as the detonation goes.

 

When it comes to "A good set of aluminum heads" would these qualify. The price wasn't too bad I thought.
http://cgi.ebay.com/ws/eBayISAPI.dll...m=120298415089

 

The pro 1 are a good head the only thing I would be concerned about is those are blems I wonder if they have a warrenty or what the problem was. Dart is in MI(like the seller)I was there a few years ago.

 

Hey GRIFF, I emailed that guy who is selling them dart heads that are blems. Here is what he emailed back...

"Zack,
I can't remember what the exact issue was with this particular set of heads (since I am not in front of them...and because we have approximately 1000 sets in stock), but in most cases, the heads have some very minor porosity specs in them and Dart hadn't finished up the valve work. We've gone ahead and finished the heads off and they are now ready to assemble, just as if you had purchased them from Dart. We guarantee everything we sell to be as we described it.
Thanks,
Ryan"