oic, thanks a lot
i will go ground there to make better spark. :)

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Please re-read the following and make note of the winking face and have a think about what the winking face is hinting.

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so... winking face = not true/ half true?

you don't want to ground the distributor or the coil.

make sure the ground from he battery to the chassis is good and from the engine to the chassis.

the only path to ground for the high voltage from the coil needs to be through a spark plug.

I would hope the distributor is well grounded, Otherwise how do you expect the coil to recieve its negative trigger.

oh...

in that case i thinking if we ground the engine block more will it improve spark?

cause like this...

the positive 'head' of the plug will make electron 'jump to the 'L' shape thing creating spark
so the return is from the 'L' shape thing on the spark plug to the plug and to the engine block and to the chasis and back to battery..

so if i made more ground cable to the engine block dono will it create better spark?

Its only going to improve if the current grounding is unsatisfactory