Peter wrote"I am converting my 1980 MGB from a
single Z-S 175 to a pair of
SU HS-4's. Timing spec on the car is 10 degrees
btdc at 1500 rpm.
Do I need a different setting with the dual carbs?"
I have a 77 MGB with dual HiF6's, and I had to
advance the timing real far to get rid of a nasty
bog below 3000rpm. As a guess it is at about 30
degrees btdc. I started at 10 degrees btdc
and advanced it till it pinged. It goes like
a rocket now.
All I need know is some high compression
pistons to really take advantage of the
better induction.
stiebera@db.erau.edu
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