[ItBites]

No that is not the EOIC. That 90 degree rotate method MAY work with factory cams, but...


This is EIOC and is the only method that will never fail you, irrespective of camshaft lift, firing order, etc:

Set the intake valve when the exhaust valve on that cylinder is starting to open. EO = Exhaust is just Opening

Set the exhaust valve when the intake valve on that cylinder is starting to close. IC = Intake is just Closing.

Blykins already told you what method to use and now I have repeated it. Do not use another method, including the 90 degree method you have mentioned twice.