boms

OK just got done putting my motor back in with got it running and so one.
was really pumped to here the 272's cam. However it sounds like a stock car idles at 1000rpm no chop at all. Sounds like a stock sr20.
Timing is dead on mechanical and threw the cas.
Has great oil pressure(new oil pump)

Im lost as what it could be.

Lifters are bad? Head isnt getting oil? just confused

thanks for the help