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Old 12-16-2018, 06:32 PM
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Default Efi

doing some mods to my 598.
I bought the Holley smart coils and was thinking on going with a crank trigger and cam sensor instead of the dual sync distributor.
Are these the right parts
MSD cam sync and oil pump drive P# 85141
will this work with a tall deck?
Holley crank trigger wheel 36-1 tooth P# 556-113
or should I run the 60-2 wheel
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Old 12-16-2018, 06:55 PM
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eMSD cam sync and oil pump drive P# 85141, comes with a slip collar.rface with most afterHolley EFI systems and can easily interface with most aftermarket EFI systems. Chevrolet Model Features Melonized Gear and Adjustable Slip Collar for Deck Height Variations.market EFI systems. Chevrolet Model Features Melonized Gear and Adjustable Slip Collar for Deck Height Variations.
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Old 12-16-2018, 07:15 PM
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Great
What about the wheel?
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Old 12-17-2018, 07:51 AM
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I run the 60-2 it supposedly gives slightly better idle with more precise crank position. Some drag race guys have had issues at high rpm with it though, my setup has been rock solid to 6400 rpms.
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Old 12-17-2018, 09:51 AM
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Either wheel will work fine at marine BBC engine speeds.
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Old 12-17-2018, 12:07 PM
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ATI makes some built in trigger wheels..
ATI - Crank Trigger Shells

Would this be a better option so pulleys belts and such don`t have to realigned due to the extra wheel?
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Old 12-17-2018, 12:27 PM
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MSD / Holley has them as well.

The higher the X the better the resolution. for a jist
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Old 12-17-2018, 02:59 PM
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Originally Posted by ICDEDPPL
ATI makes some built in trigger wheels..
ATI - Crank Trigger Shells

Would this be a better option so pulleys belts and such don`t have to realigned due to the extra wheel?
pretty slick!
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Old 12-17-2018, 03:42 PM
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I always liked to keep it simple, dual sync worked fine for me.

Last edited by GPM; 12-18-2018 at 04:53 PM.
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Old 12-17-2018, 09:20 PM
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Originally Posted by getrdunn


pretty slick!
I don`t really want to move and realign all my accessories to fit a flying magnet in there
Figured this would be a nice option?

Alex Haxby pointed out he likes to use a dual sync with a billet cap, no need for a seperate crank sensor.. seems like another option.








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