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Stock is .35 but since you have aftermarket ignition I assume coil is hotter as well so i would open them up to .45. Use copper core since they are more conductive and spark easier and perhaps index as well. You should consider getting the old factory "fuelie" heads and ram's horn ex manifolds.
What else can I help you with?
Why my 1966 Lincoln continental wont stay running for more than a minute?
Check for fuel (bad fuel pump or clogged fuel filter) Check for spark (bad or weak ignition coil)
How do you replace ignition switch on a 1966 Chevy impala ss?
The 1966 Chevy Impala ignition switch can be removed by loosening the retaining ring at the top of the ignition switch. Remove the wiring harness. Reverse the process to install the new ignition switch.
What is the ignition gap points dwell and spark plug gap for a 1966 Pontiac 389?
Dwell 28-32 degrees Spark plug .035
Spark plug gap for Ford Mustang 1966?
The 1966 Ford Mustang 200 cubic inch straight six spark plug gap is .032 to .036 inch
What is the spark plug gap for 1966 mercury 410?
The spark plug gap for a 1966 Mercury Marauder 410 6.7L V8 is .034 to .035 inches. The new spark plugs will not need adjusting, however, as they come preset.
What is the ignition timing point gap and spark plug gap for a 1966 Ford 352 FE V8?
Points Gap: .014-.016 (26-28 degrees dwell) Plug gap .035 Auto-lite BF42 plugs
What is the gap setting for spark plugs on my 1966 Ford Mustang?
On a 1966 Ford Mustang : 200 cubic inch inline six cylinder engine : The spark plugs are gapped at ( .032 to .036 inch )
What is the spark plug gap for a 1966 mustang with a 289?
According to one of Fords websites : For a 1966 Ford Mustang , 4.7 liter / 289 cubic inch V8 engine : ( the spark plugs are gapped at .035 inch )
Where is the ignition Module for a 1966 ford mustang located?
A 66 Mustang regardless of engine doesn't have an ignition module from the factory. It uses breaker points inside of the distributor housing to directly control the ignition coil.
Do you know the ignition timing for a 1966 Dodge Dart?
Get a chiltons repair manual from the library for your car.
1966 Chevy pickup key starts it but does not turn it off?
Could be a bad ignition switch....
How do you remove a 1966 bronco ignition switch?
To remove the ignition switch from a 1966 Bronco, first disconnect the battery to ensure safety. Next, remove the steering column cover by unscrewing it, then locate the ignition switch mounted on the steering column. Disconnect the wiring harness from the switch, and remove any screws or bolts securing the switch in place. Finally, pull the ignition switch out of its housing to complete the removal.
