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Matt in OR
Everything you need to adjust valves. Kit has all sizes .
BROCK in ON
I have put these chains to the test on multiple engines, even with my ported 450 bouncing off the rev limiter. They don't skip a beat. Found them to come a little tight though.
Anthony in TX
Increased performance very happy with product . Great mid and high end power
Kyle in Western Australia
It increased abit of power but didn’t give it the overall big power boost
Tyler in NY
Increase low end torque good mid range hood performance upgrade
Aaron in AR
Good price on a great product! Easy install, good performance gain all around!