429 miss on 1 and 6

[Guest]

[Cold Aussie]

Hi All
been a while for me! Is there anyone still out there? Hope your all well and playing safe.
Simple question I have a 1970 Torino Thunderjet 429.
Engine misses on 1 and 6. Directly opposite on the distributor and running same port on the Edelbrock Performer RPM.
Tried caps, rotors, different leads and distributor.
No vacuum leaks I can find, good compression on both, cam lifts about right with dial indicator on the rocker arms. New plugs.
770 vac sec Holley new power valve etc etc. WTF am I missing?
Regards
Stephen