PM me, I got 4-5 used EZL (for 6 and 8 Cly) may be you can try it on. I got to see what number I have.
I live in West Chester, PA.

I know what I would do and that is put in an aftermarket ignition. You could go cheap with a msd or something. You do need something with a adjustable timing curve.

Let me know if it's one of the part numbers listed. They are unique to these years and models. Thanks

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'88 300TE, 175k, black RENNTech 3.6L Recaro C's AMG 1 SOLD
'92 500E, 110k, Spruce green, stock SOLD
'94 E320 Cabriolet, 130k, E500 wheels, Emerald green SOLD
'94 E320 Cabriolet, 110k, black, stock, SOLD
'88 300TE, 229k, dark grey, SOLD
'90 300CE, 212k, white, new paint, SOLD
'91 300E, 209k, white, rebuilt head SOLD
'74 914-6, grey, 2.7L 325hp twin turbo Audi conversion

Sorry, what I have are

006 545 76 32 ( Siemen 6Zyl )
005 545 85 32 ( Bosch 6Zyl )

033 545 92 32 ( Bosch 8 Zyl )
004 545 53 32 ( Bosch 8 Zyl)