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spark plugs

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Biggie1720

New member
3.8" pully.... slp headers with high flow cat... K&N cai.....msd coils....cat-back...180*....


what kind of plugs would be good ngk tr55s? or another brand ? what would i have to gap the plug to ? and do i need biggier wires like 8.5? i have stock ones i just bought last year
 


Alot of people here use copper autolite plugs with a s/c motor. 606's for stock, 605's for light mods, 104's for when you drop pulley sizes. I gap mine to .55. I think .60 is stock. Stock wires are fine. People mostly upgrade wires for looks and perhaps more durability if you're constantly changing plugs. Keep in mind that copper plugs need to be changed about every 10k miles or every other oil change.
 
Get a tune...and toss a 3.4" on there...then get new wires and plugs at the same time...autolite 104's then.
 
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