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wally6761 · 04-30-2002, 10:07 AM

i've got a cobra so i run premium. i'm a little doubtful about whether it actually needs to be done. 8.5 : 1 compression shouldn't require 92+. but i'm not going to screw up an aluminum motor to find out.

04-30-2002, 10:07 AM	#1
wally6761 Registered Member Join Date: Mar 2002 Location: St Louis Posts: 47	i've got a cobra so i run premium. i'm a little doubtful about whether it actually needs to be done. 8.5 : 1 compression shouldn't require 92+. but i'm not going to screw up an aluminum motor to find out.