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#1 |
Registered User
Join Date: Nov 2006
Location: Westbury Ny
Posts: 14
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Correct Spark Plug Gap
I have a 72 chevy c-10 with a 427 ci engine from a 69 impala i was wonderering if anyone possibly knows the correct gap to use on the plugs.
thanks for any help, George |
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#2 |
huh ???
Join Date: Nov 2002
Location: Fredericksburg,Va.
Posts: 3,369
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Re: Correct Spark Plug Gap
If you're still using the points setup .035 ...
Chuck
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90 Blazer Silverado 350w/ 700R4 and 32" Kelly's "I am a bomb technician. If you see me running try to keep up!" |
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#3 |
Registered User
Join Date: Feb 2007
Location: Bend, OR
Posts: 110
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Re: Correct Spark Plug Gap
It really depends on your ignition system. Points are around .035 and HEI is around .045. If you are running something like a multiple spark discharger....like MSD, it can be .050 to .060 and higher. A lot of it, with MSD, depends on your compression ratio. Hope this helps!!
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'68 Chevy SWB with 460 BBC Muncie M-22 and Eaton posi rear w/ 3.73's Corvette rallys with mini derby caps Sick horsepower and torque |
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#4 |
Registered User
Join Date: Nov 2006
Location: Westbury Ny
Posts: 14
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Re: Correct Spark Plug Gap
alright i will probly go with somthin around .050 then b/c i have a msd distributor and coil.
rhanks for your help george |
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#5 |
Registered User
Join Date: Feb 2007
Location: Bend, OR
Posts: 110
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Re: Correct Spark Plug Gap
That gap is only for the MDS multiple spark discharger!!! If you are just running the distributor and not the box, like a 6AL, that might be too much gap and it will make your ignition system work too hard. You really need to check with MSD to see what they recommend.
__________________
'68 Chevy SWB with 460 BBC Muncie M-22 and Eaton posi rear w/ 3.73's Corvette rallys with mini derby caps Sick horsepower and torque |
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