Looking for options/advice to upgrade the old points ignition to Electronic on Ford 351W....

castone001

Member
Jun 3, 2013
269
90
Murrieta
Name
Chris Stone
Boat
Dos Viejos
as the season slows up and my work travel lessons its on to the next boat upgrades. Been doing some research but there are a TON of options and like most things cost does vary. Would appreciate some feedback, advice from folks who done this upgrade.

What I have:
1973 24' Chaparral Cuddy - Love this boat, had it a little over a year now working on upgrades in between trips

351w - No idea on hours but it does run smooth no smoke, starts up fine. No noticeable Oil burn
Before I have a problem I am replacing the OLD Carter Non-Marine Carb with a Holley Marine 4160 4bbl

Ignition: Older probably original Bosh style Points Distributor setup.
Looking to replace the distributor, coil, plug and wires all new and electronic. There are a tone of choices. Hoping folks can help me weed through them :)

Merc out drive: (older MR unit) Just rebuilt entire unit 'except' the u-joint which looked fine but will replace next year.
21p Three blade prop
19p Spare (a little beat up)


Currently on smooth water I have ran the following
2900rpm and GPS at 26mph
2500rpm and GPS at 21mph
1500rpm and GPS at 8mph

Goal with the boat is for overall safety then reliability.

20180422_144735.jpg 20180422_144744.jpg 36925723_10205197061363387_4523331231114330112_n.jpg Port Side.JPG
 
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Capt.C.Delany

The only fishing I do is trolling the Internet
  • Jun 22, 2014
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    Hugh Jassole / The Porcelain Punisher
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    Paddy Wagon 24' Skippy
    I agree as the others have said about the Pertronix, one other thing I would consider and this is just my opinion, go with the Edelbrock 1409 marine carb. They run perfect right out of the box. I drilled and tapped mine for my pcv valve (optional). I love it, made a world of difference.
     
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    tuner

    pysgotwyr
  • May 24, 2006
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    Steve
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    260 Mackinaw
    I prefer Edelbrock "AFB" carbs over the Holley 4160 for this application. Jetting should be very close and, if needed, primary metering rods and springs are so easy to change.

    A muscle car with a big cam and manual trans is another story...Holley HP with mechanical secondaries!
     
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    mike mitchell

    I Post A Lot But I Can't Edit This
    Jul 25, 2017
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    Michael Mitchell
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    Before you go with a Petronix system find out if your shift interrupter can work with it. That was a problem for my old Mercruiser.
     
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    Day0ne

    I Should Upgrade My Account
    Dec 24, 2004
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    233 Formula Shadowdancer
    Shift Interrupter??

    The Mercury outdrives (Alpha and older) have an interrupt switch in forward and reverse. Basically, when you shift into any gear, the switch momentarily kills the engine, allowing the gears to either engage or disengage. Without this you wouldn't be able to get in or out of gear.
     
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    castone001

    Member
    Jun 3, 2013
    269
    90
    Murrieta
    Name
    Chris Stone
    Boat
    Dos Viejos
    Thank you!! Makes sense....I just upgraded that switch from the old one to the new roller style. I will have to research to see if Pertronix will cause an issue.
    Thanks!!
     
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    willyok

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    Apr 10, 2012
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    Name
    Will
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    Aloha Lady 33' K&C.
    I’ve used a lot of pertronix products in marine and automotive applications. When they work they are awesome... I’ve also had the module fail numerous times in all applications. After the first time failing on the water, I upgraded to a D.U.I distributor. It looks just like a GM HEI set up. No further issues.
     
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    Arima-bob

    Ship faced aquaholic
    Mar 9, 2012
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    Beeulzebob
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    uh....
    I haven’t applied it to a boat, but I had a Ford 302 in a 65 Falcon. I changed the the points and condenser to an MSD electronic ignition, MSD box and distributor. Noticeable bump in power, and a huge jump in fuel economy. Also carbed with a Holley 650DP w/ mech. secondaries. That car was fun! Sorry for the sidetrack.
     
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