high torque head vs. hi hi comp head

I have a stock hi torque head on my 1978 maxi luxe. I am thinking of getting a hi hi comp head. What performance changes should I expect?

Re: high torque head vs. hi hi comp head

More torque, less rpm , more heat . You mat have to retard timing or Upjet .

Re: high torque head vs. hi hi comp head

Get a bigger then 12mm carb first

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