I read somewhere changing to a good uni air intake, make a big difference for them, in the climb area. Not sure what you got.
I ran a A12 for years. I don't know if made much difference, but run the hills just fine.
If your going up and down hills a lot. 10G rollers, will give you best low end power, and keep you there. Wont affect the top end, but will take a little bit, to get there. What I've been running for years.
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