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View Full Version : whats the best compression ratio for my 400 ex ?


HOT-ROD
12-15-2002, 06:28 PM
heres what i have 39 fcr , stage 1 hotcam , dmc alien exaust . dont want to run race fuel .
DEAL
12-15-2002, 07:02 PM
11:1 is probably the best all around.
12-15-2002, 07:14 PM
hey...with 10.25 or 10.8 do you have to rejet?