honda is closed so i thought i'd post up and see if anyone knows what the vaccuum pressure should be on stock motor. my bro overreved the motor and it's been ticking. i think it's the lifters but i was told by my tuner to check the vaccuum pressure to see if i'm getting the right amount of vaccuum in the IM. so does anyone know? thanks.

 

Overrev + ticking sounds like bad retainers giving up on you. I have no idea why the IM vacumm pressure could help/hurt.