Not Ranked
compression
I have a 390 bored 30 over with 10:1 CR. Engine has 700 miles on it, did a compression check and numbers I got were 125 psi for the low cylinders and 140 for the high. Check was done at WOT, all spark plugs removed, battery charger running and engine at operating temp(160 thermostat). Right at the 10% mark.
Is this normal for a FE?
|