is it worth changing intakes?

A stock TQ intake and a 650 DP Holley spreadbore will make enough power to put You in the high 12's, that's a fact.....I'm not familiar w/the cam, but I second dano's
query & would add that while a change in valvetrain(rockers, pushrods, etc.) may not be needed to run, checking pushrod length & rocker geometry will very possibly
net you significant improvements anyway. FWIW, the Eddy Performer RPM cam states it requires adj. valvetrain............and that's how I ended up with one cheap, it
was installed and ran poorly as well as noisily w/stk. valvetrain components................................