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toobroketoretire 08-04-2009, 10:32 AM I would like to see a scientific evaluation of all the popular brands of spark plugs. To put an end to the debate of "which spark plug is the best". What brand of spark plugs do you prefer and WHY do you feel your favorite brand is better than another brand? fishslayer143@yahoo.com 08-11-2009, 06:28 PM I would like to see a scientific evaluation of all the popular brands of spark plugs. To put an end to the debate of "which spark plug is the best". What brand of spark plugs do you prefer and WHY do you feel your favorite brand is better than another brand? cant give any scientific evaluation, but i have to use AR3932 shorty race plugs on my alum. angle plug patriot heads. nothing else fits or is recomended heat. however they work great!!!! right up to 6500 RPM toobroketoretire 08-12-2009, 03:46 AM cant give any scientific evaluation, but i have to use AR3932 shorty race plugs on my alum. angle plug patriot heads. nothing else fits or is recomended heat. however they work great!!!! right up to 6500 RPM Who makes those AR3932 plugs? I'm not familiar with that numbering system. fishslayer143@yahoo.com 08-12-2009, 09:33 AM Who makes those AR3932 plugs? I'm not familiar with that numbering system. Made by autolite recomended by Patriot Performance for their stroker 500HP 383 cu. in. crate motor i just installed a few weeks ago . Man you would not beieve this motors performance. 1500 rpm to 6800 rpm screaming Checked with ACCEL and E3 plugs , they have no match for it ,heat range 2 | |