[rps13drift]

So for the past few weeks i have been battleing a low vacuum problem with my newly running motor! All i did was replace my stock headgasket to an apexi 1.1 and i did hks step 2 264 in/ex cams(my only vacuum changing mods). My motor was perfect before i did this and it also checked out in both compression and leakdown tests prior to installing .Im only pulling 7-8 inHG at idle and i was worried my cam timing might be off but everything looks good to me. So people that know/have done this before please double check this for me and let me know what you think! It would be highly apprciated