hi i have a 400sbc just replaced the intake gaskets every looks good no leaks .when i put my car in drive the oil pressure drops to about 10psi i ask a guy at auto zone about it he said it should be at 40 psi ?but when im in park it goes back up to 20psi .is this normal or is there sumthing wrong?oh and on the left side of the motor then ur in front of the car the left valve cover brether is blowing smoke sum one told me its blowbye ?wanting to knw if thats bad? and is there sum way of fixing it.
