There isn't much to the HEI dist. on the older GM cars. All of the HEI's of the time used the same coil that drops into the top of the dist. under the center dust cap. With the exception of the contact points, (the number of plugs) they all used a Standard Ignition Coil Pack. The wireing was the same for v6 and v8 applications. The correct fireing order for the 231 is; 165432
it is distributorless no cap to replace has coil packs
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No
The 1990 Buick Century has a timing chain and not a belt. No replacement is necessary.
How TO REPLACE THE TRANSMSSION: CALL A MECHANIC
you dont!
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