Is low vacuum at idle a problem?
Is low vacuum at idle a problem?
I have a b16a with 0.022" milled head, CTR cams and intake cam advanced 1.5 degrees. At idle the car works exactly at the third column (410mbar absolute pressure). Is this a problem? Shoud I retard the intake cam and/or advance the exhaust a little (note that 0.022" milling should retard the cams by 1 or more cam degree or 2 crank degrees).