your still too border line for pump gas in my book at 11;5;1 ...10:1 max is where i would want to come in...plus you cannot guarantee the quality of fuel you are gettting from the pump ( someone might have mentioned earlier)...
as far as the heads are concerned..there are many more qualified people to answer this..but what i will say is stay away from any heavy port work with the heads or intake for street use..a good bowl blend is about it..
Brian
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Bjuice..
"I'M YOUR HUCKLEBERRY ! "