Distributor curve help needed
Well you got it in the ballpark now.
Hopefully you see what the different adjustments do now.
I'd like to see faster rise in the timing from 1200 to 1800 rpm. Especially if you find the engine likes a little less intial (tested in gear) you can set it with less intial and still have the off-idle WOT timing it probably wants. Same if you find the 37 at 3500 is too much at WOT.
Probably will need something closer to a factory set of springs like used in a 4bbl points car.
No idea how the long loop spring you have would block the weights but you can take some pics and/or contact halifaxhops.
Maybe Halifaxhops will have some springs that will work with the points distributor.
Next steps are up to you. If you want to continue refining the initial and mechanical, or make a trial with vacuum advance then come back to tuning the initial and mechanical. Depends on your focus and what your plans are. If your taking it to the drag strip or on family cruise thise weekend can shift the test plan big time!
If you do hook up the vac advance, the timing from 2500 - 3000 may contribute to pinging when cruising. Its borderline right there depending on the vac advance and the engine specifics. Yes the vac advance can be adjusted to some extent but no point in making major mods there if the mechanical advance still needs tweaking.
A little ping at cruise is tolerable. Any ping under heavy throttle is not.
Well you got it in the ballpark now.
Hopefully you see what the different adjustments do now.
I'd like to see faster rise in the timing from 1200 to 1800 rpm. Especially if you find the engine likes a little less intial (tested in gear) you can set it with less intial and still have the off-idle WOT timing it probably wants. Same if you find the 37 at 3500 is too much at WOT.
Probably will need something closer to a factory set of springs like used in a 4bbl points car.
No idea how the long loop spring you have would block the weights but you can take some pics and/or contact halifaxhops.
Maybe Halifaxhops will have some springs that will work with the points distributor.
Next steps are up to you. If you want to continue refining the initial and mechanical, or make a trial with vacuum advance then come back to tuning the initial and mechanical. Depends on your focus and what your plans are. If your taking it to the drag strip or on family cruise thise weekend can shift the test plan big time!
If you do hook up the vac advance, the timing from 2500 - 3000 may contribute to pinging when cruising. Its borderline right there depending on the vac advance and the engine specifics. Yes the vac advance can be adjusted to some extent but no point in making major mods there if the mechanical advance still needs tweaking.
A little ping at cruise is tolerable. Any ping under heavy throttle is not.