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Discussion Starter · #1 ·
I just installed a Flamethrower coil to compliment my Ignitor. I have 7mm spark plug wires. My Autolite 45 plugs are currently gapped at the recommended 35. Where would be the best gap setting now? I am looking for the best performance/economy combo. I have a 289 2V with a 3-speed manual tranny.
TIA,

James

1965 convertible "White Pony", my own lesson in mechanical humility
 

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Try 40 or 45. IIRC, Johnpro runs his plugs at 55 but he has an MSD control box.

Black primer 66 coupe, bench seat, 68 302-2V, C-4, 3.55 TSD
879 posts as "66 bench-coupe" on old VMF
robert94928 on Yahoo Messenger
 

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Left this out, he's running a Pertronix as well.

Black primer 66 coupe, bench seat, 68 302-2V, C-4, 3.55 TSD
879 posts as "66 bench-coupe" on old VMF
robert94928 on Yahoo Messenger
 

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I have the coil, wires and Pertronix unit and 45's. I just put in new plugs and set my gap to 0.040". Running pretty good. Next time I'll try 0.045"

67 Sports Sprint, Convert. Original C code, now 293 ci with Holley 450 and 295,000 miles
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Discussion Starter · #5 ·
A plug gap of 45 works for me with the Pertronix ignitor and factory coil.


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65GT
MCA #15474
 
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