spark plug heat range
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spark plug heat range
deliveredfast August 27th 2014, 8:38 pm
What would be a good or ideal spark plug range for the following engine combo running on all motor only? I am currently ngk #9. Im wondering if a #8 will give me a performance gain 
598ci
14.5 to 1 comp
1600 cfm carb
crank trigger
a460 heads/intake
2 1/4 headers
34 degrees of timing
2 speed power glide. 1.80 1st gear
4.30 rear gear
2780lbs with driver
598ci
14.5 to 1 comp
1600 cfm carb
crank trigger
a460 heads/intake
2 1/4 headers
34 degrees of timing
2 speed power glide. 1.80 1st gear
4.30 rear gear
2780lbs with driver
deliveredfast- Posts : 358
Join date : 2008-12-03
Age : 52
Location : Taylor,MI
Lem Evans- Posts : 7445
Join date : 2008-12-03
Location : Livermore , Ky -
Re: spark plug heat range
richter69 August 27th 2014, 9:14 pm
time for that nawws it sounds like...... but id put a 10 in it first.
richter69- Posts : 13649
Join date : 2008-12-02
Age : 53
Location : In the winners circle
Re: spark plug heat range
psfracer August 28th 2014, 2:00 am
I ran NGK -9 on motor and -10 on a 200 shot.
psfracer- Posts : 794
Join date : 2010-10-22
Location : Valencia, CA -
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