Wont matter what you do the jrsc will never make big power , it just isnt in its blood to do
If you raise the complession that means droping the timing to allow unless you going to run 105-110 octane and I dont mean e85
I am being straight here with you , you will spend more to make less , you port the head you loose boost , you go big exh you will loose boost and your spinning the SC as much as you can now
Another thing your hitting what close to 200 deg IAT and the problem will only get worse the more you try to make power with it
It isnt that no one has done big power with the jrsc as much as many have tried and it wouldnt do it and a few dumped a ton into trying
But in the end you will have to find this out for your self and after all it is your money to spend freely
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