10 & 14* Limiter Bushings Professionally Built for MSD Pro-Billet Distributors

Description

The Black bushing supplied by MSD with your distributor will allow 18* mechanical advance, most American V-8 engines require a total of 34-36* under load so with the largest bushing they make you can only get 16-18* of Initial timing which in most performance engines is not enough to achieve a lean & clean crisp idle and get rid of the eye watering Raw fuel fumes caused by inadequate initial timing.
FBO Ignition Products
Now Shipping this product to Canada Australia and most European destinations
USPS 1st Class Mail .00
Incorrect timing can also be responsible for not only a rich idle but overheating in traffic, stumble off idle, lazy throttle response, lost HP, burned out header gaskets, discoloration of ceramic coatings and poor fuel economy.
Without enough Initial timing it is impossible to set up the carburetor correctly as it won't respond to adjustments without enough timing to burn the fuel
If you're Drag Racing you know that consistency is #1 in Bracket Racing, you will never be consistent with the combustion chamber loading up with fuel and fowling plugs.  You want to win?...
Get the timing right!
This Bushing kit will solve many of these issues if the distributor is correct for the application.
Our rule of thumb is "If the engine will make 7-8" of Manifold Vacuum at idle with the idle timing set at 30* then it should have a Vacuum Can type Properly curved Vacuum type distributor and connected to a CONSTANT Manifold vacuum port.
These bushings will fix most rich idle conditions, 80% or more of the rich idle complaints we get are NOT a Carburetor issue, If your not sure just call our tech-line and discuss your issues with an Ignition/Carburetion expert with over 50 years experience.
We have Email and of course Phone and Text access for tech help.
PLEASE
NO
Calls regarding Edelbrock Carburetors
Mon-Thurs 8AM - 3 PM Pacific time
Be sure and check out all our other Specialty Ignition parts on eBay
The 10* bushing is now milled on 2 sides to allow easier installation into the slot on some distributors.  We have also changed the material to a high grade aircraft aluminum to reduce heat expansion and we now bevel all edges to ensure a smooth advance action.  Our testing showed us that the 6061 Aluminum would expand and reduce timing by 1.4* when heated to 250* with our new grade of aluminum the 250* expansion test showed .0002* of expansion and undetectable timing change.... Higher quality, Better fit, Better finish longer service life with even more accuracy.... same price and as always our products are
Proudly Made In USA
By a ISO 9000 certified machine shop, No Shortcuts!
Free shipping is 1st class mail
, call for expedited shipping quote.
Now .00 USPS 1st class Shipping to Canada, Europe and Australia
Got Mopar?
Check out this listing on Mopar Advance Limiter Kits
Mopar Advance Limiter Plate
eBay #323099910935
z
Got Mopar? Don't just do 1/2 the job if your trying to run any of the old 1960's transistor type ignition modules your only doing 1/2 the job if you really want to optimize performance look at our
HRR688
Ignition module
eBay #222855818080
MSD Box Troubles?
Try one of our Daytona Sensors CD-1 Ignition Control Boxes Proudly Made In America
More features: Data Logging, Map-able timing system, 3D timing control,  Inputs and outputs by RPM, Start Retard, Multi Spark Capacitive Ignition with 2 or 3 REV Limiters
Best Ignition
control system available and
Built In USA
More Info at
Search "FBO Ignition" Daytona Ignition for eBay listing
From our Website:
Can't get rid of that Stinky Rich Exhaust at idle? The MSD distributors come with 3 bushings with the largest one being 18* so when installed it will give you 18* of mechanical advance.  If you're trying to total the engine timing at 36* you would simply set the idle timing at 18* and the MSD black supplied bushing will allow it to advance another 18* to bring your total to 36*.
As most of you have already discovered you can't get a clean crisp idle out of your tune up and to make the carb adjustments respond to your tuning your performance engine needs more initial timing. Of course when you add more initial timing the total goes up the same amount and causes detonation and other tuning issues that could seriously damage your engine.
MSD will tell you to lock it out at 36 and buy one of their spark retard units (9.00) so you can get it to crank over at 36*.   We 100% adamantly disagree with this ridiculous solution designed to bleed your wallet and possibly cause even more tuning and performance issues.  Your Race motor may like the 36* all the time but in most applications it will cause hard hot starting, over heating and detonation issues at low RPM high load. Ask to speak to a tech guy with 40-50 years experience at MSD.... Let us know how that works out for you.
By simply swapping out the black 18* MSD bushing (or other MSD stock bushings provided) and insert one of our 14* or 10* bushings it will allow you to set your idle timing at 22* or 26* and not allow the mechanical timing to exceed the desired 36*. (34* for Mopar and 35* for Fords)
Then run a heavier spring so your timing mark isn't jumping around when your trying to set your idle timing. Keep in mind that the as built MSD distributors don't allow the timing to come all in until 5000+ RPM. Too light of a spring will allow the weights to bounce off the stop at idle and cause the timing mark to go crazy when your trying to set your timing at idle or even be allowing the distributor to be advancing at idle causing too much timing at the top end.  If your running a 3000-4000 or bigger Convertor there is no need to bring the timing all in until just below the stall, you won't load the motor until the Convertor locks anyhow so there's no performance gain to be had in running your distributor all in at 1500-2000 RPM with a 4000 stall Convertor...think about it.
Big cams bleed off cylinder pressure allowing you to run big initial timing numbers this will really help you get quick clean starts, we want the motor to have as much initial timing as possible without kicking back or dragging down the starter when hot and at the same time still have plenty of initial timing to get quick and clean starts.
From our experience I would guess that at least 50% of you are having issues, either you purchased a Pro Billet non-vacuum distributor for an engine that needs a vacuum advance and you can't get enough initial to get a clean idle or you've been reading MSD instructions and you've got the vacuum line hooked to the ported vacuum instead of the constant.  We can help you with all of these issues, not only the right parts if needed but real tech advice from professional people who will take to time to explain to you why changes may be needed.
Give us a call and lets talk about your issues and maybe we can help solve them. Contact us through our website Mon-Thursday 8am-3pm Pacific Time and most Fridays we're here to help you unless we've gone racing.
BE A DEALER! If you have a Shop or Retail Parts Store give us a call we can set you up as a Wholesale account.
The Best Offer Option is only for a Quantity purchase there is No discount on less than 2 sets
Free Shipping is by 1st class mail
, call for expedited shipping quote.
Now .00 USPS 1st class Shipping to Canada, Europe and Australia