I have opened the muffler and did away with the catalytic. It runs pretty good but I always want more. Randy did a cs600p Echo for me a couple of years ago that really has power for 60cc. I run a 28" bar when I need it but usually a 24.
I agree. I was asking about the clamshell because I have a 352 Echo that could use more power and I think a boost in compression would do wonders for it. I always find myself grabbing it because of the weight.
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