340 rebuild,timing,intake manifold

Almost finished with 69 340 rebuild.I've read so much about timing that I'm questioning myself. I had no. 1 at TDC,motor right side up,mark on cam at 6:00, mark on crank at 12:00, centerline with crank and cam,both valves closed on no.1,oil pump drive slot lines up more or less with left front intake bolt hole,now does the rotor line up with no. 1 on dist? Also I was planning to install a performer intake.From what I've read the factory 69 intake performs better ?