Engine swap advice

Slant-6 tune-up parts and technique suggestions in this thread over on the slant-6 board…and how long since this engine has had a valve adjustment? And are ya sure the distributor is installed and timed correctly? That helical-gear distributor drive foils even those of us who mess with slants all the time; see here. Especially since the timing chain's also been replaced, it's entirely possible you're up against nothing more than improper timing.