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the cam works from 2500 to 6500 and its at about 6800 it sounds like a sputter..i looked at the plugs yest. and the fr. plugs dont look as good as the bk.....the # 1 and the # 2 look a little diff. than the rest but the bk 5/7/6/8 looks great...3/4 looks better than 1 and 2.....also my dist. is locked out timing is set at 33 plan to change it when i go back to the track tomm. i hope..

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the cam works from 2500 to 6500 and its at about 6800 it sounds like a sputter..i looked at the plugs yest. and the fr. plugs dont look as good as the bk.....the # 1 and the # 2 look a little diff. than the rest but the bk 5/7/6/8 looks great...3/4 looks better than 1 and 2.....also my dist. is locked out timing is set at 33 plan to change it when i go back to the track tomm. i hope..

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done told what the problem probably is change the chip

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the cam works from 2500 to 6500 and its at about 6800 it sounds like a sputter..i looked at the plugs yest. and the fr. plugs dont look as good as the bk.....the # 1 and the # 2 look a little diff. than the rest but the bk 5/7/6/8 looks great...3/4 looks better than 1 and 2.....also my dist. is locked out timing is set at 33 plan to change it when i go back to the track tomm. i hope..

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6800 with a 7000 chip, it is probably picking up some cylinders early, or the tach could be off some.

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Try a 3000 chip in the box.put in park and look at the tack.rev it slowly.mine starts droping cylinders at 2600.

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i have a miss at top end some time not all the time i thought is was out of fuel then turned it up to 7psi,and still have the same thing...i have msd 6al with a 7000 chip init mopar dist. lockedout and new cap and rotor....moros 8mm plug wires checked plugs yes. and they looked good .should i try more fuel???i have no clue as to what it maybe or where to start looking....souds as if its out of fuel what it sounds like....just dont know where the reg. should be on this mild motor or if its a ign. problem... thanks

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A MSD BOX IF IT FIRING ITS GOOD
IT CANNOT PICK AND CHOSE WHEN TO FIRE, IT IS JUST TOLD TO FIRE, YOU CAN PERFORM THAT TEST EASY!
IF IT FIRES FROM COIL TO DIST CAP, ITS A GOOD ONE,
NEED TO CHECK BEYOUND THAT POINT

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Incorrect... I have had a box cause a high end miss
and did all the checks(pulled the limiters, checked
ground and hot leads), finally changed my 7AL box with
my spare and the miss was gone... put the old one
back on and the miss returned(same day) then changed
it back to the new one... miss gone. I know of a
couple others on here that have had the same issue

By the way.... turn off your caps lock... thanks

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I'm one of those others. Mike let me try his spare 7al and problem solved. Not saying this is your problem but it does happen.

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you had a connection problem
box that fires by the test is good!!!
Call M S D they tell you that!!
it doesnt know when to fire or not,
it is told to fire, thats all it does!!
now you can have elect interferance causing that same erractic misfire such as having you're dist wire running with alt wire ,,
other things electric shifters controls
we all like our wires run together looking nice and tight dont we??
thats why i can key down on my c b radio and get free car washes
go thru micky ds and open their cash drawers
sorry for caps

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Thats what I thought also, but when you do a A-B-A
change and the problem comes and goes it wasnt a
connection problem.... yes you are correct that when
I sent it back to MSD they checked it out and said
nothing was wrong.... BUT when I got the box back
and tried it again it worked fine(still had to pay
the $35 bucks). I know of others that have sent their
boxes back and they said the same but it came back
working properly