Quote:
Originally Posted by 2fast4y0u
what kind of vacuum at idle are u guys getting with the 2871 and 264 cams? thought was low so i did a leak test and i have no leaks at all...but ihave low vacuum at idle
|
I have 264 Step 2's (12/11.5 mm lift) and my vacuum is WAY lower than stock....
Stock I was seeing like -20 inHg or so....which is like 9.5-10 psi....
With the bigger HKS cams, I see like maybe like 5.5 psi or so at 800 RPMs....
They definitely have way more overlap than stock cams, so you are gonna have substantially less vacuum at idle.