318 2bbl won't idle without choke

5! That sucks..barely! 15 is better, steady 18 is great. 5 must be with the choke on the fast idle step but still low. find TDC with a piston stop (or a drumstick jammed in a plug hole: run it up slowly with the crank bolt, mark damper at TDC tab when it just touches, reverse the crank 300 degrees and mark damper @ TDC again when it just touches again and bisect the 2 marks exactly, there is your real TDC on damper, probably not far off the original if at all) Run new mark to TDC and then youll have to check cam dot. Your points should just be opening (@10 BTDC, 'limp home' timing) or right before. If you have a dial indicator you should be able to find cam timing with a cam card and a degree wheel looking for intake starting to open at about 21 degrees BTDC