Hi,

I have the same 'fluttering' problem at around 1500rpm. I thought I had fixed it by turning the vacuum modulator one segment anti-clockwise, but when I took it for a second test drive it still fluttered.

Have you managed to cure your 'flutter', and if so, what did you do???


Hope to hear from you soon,


Adam.

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Adam
1984 500SEC
1988 560SEC