more on msd 8973

using dave lahees timing monitor
promod brad 5 crower 10 inch 3disk mag 44 crank trigger
lahee mag/crank trigger switch new computech data max
timing 27 mag and crank trigger
ramp 10-0 all in by 1 second or 60 ft aprox
i will have 1 good run goes right down the track 4.05
and the timing ramp is good and smooth with 1 degree of
variation
next run will go about 100 ft and get loose
looking at data timing is fluctuating from
27 to 33 from launch to letting off throttle
if this is correct this will end my motors life
but is this interferance or from the tire shake
on this run it was good to 60 ft and timing was
still flutuating
by the way these are spikes that are fairly wide up and down
smoothing will not get rid of them
why is it adding 5 degrees
is this interferance or what
any ideas besides using a 6 shooter
thanks
duane rister
618-781-4703