well i just install them. its a nice upgrade for a low cost. nothing mind blowing. i did feel it SOTP but not much. now 1 thing i know is that my rpms just goes way faster across the tachometer. no cooling or voltage issues weird thing is that it just feels like i lost some low end grunt but gained more in the mid range. im gonna check my timing to see where its at. YES i need to install my gears.
overall, march pulleys i recommend
overall, march pulleys i recommend