ok, i just swapped from tbi to carb and i have heard everyone say 6 psi of fuel pressure. now is that 6 psi with the motor off or 6 psi while running? i have it set at 6 psi while off and when i gun it with no load on the motor, it drops down to 1-1 1/2 psi. is that normal? and if not, what should be normal? also, i have no kickdown now, but when it is in 3rd (th400) and i gun it, it starts to knock BAD!! my timing is set at 8D without the vacuum hooked up. when i hook it up, it stays at 8D. shouldn't it go down? and will that cause it to knock under load or does it have too much or not enough gas? again, thank you for the help. i don't know what i would do without this site!!!