mustnglvr

Adjust your floats

fablefifty

the fuel pump flows 5-8 psi. its an aftermarket POS electric pump. I took out the needle and it was a little sticky. i cleaned it up with some carb cleaner and tryed it again and it still dieseled but this time no fountian of fuel. what could be causing the dieseling?

mustnglvr

What all have you checked so far?

fablefifty

Ive checked the timing.. it is set at about 23* with the vacume line off..If iretard it anymore than it is it starts to backfire when i hit the gas. if i advance it, it starts to idle really high and ive adjusted the fast idle screw all the way out and the idle wont go any lower..Im pretty sure i got the float levels right.

ddeaton66

I think we need more info on your setup, I still would check my float level if I were you.

fablefifty

I just did a stroker kit on my stock block. i got a 331 kit from CHP.. i have an edelbrock rpm manifold.. 600 holley carb, f303 cam, twisted wedge heads, 3.73 gears.

Gtdaniel

Vacume leak?

ACE

Even if its an aftermarket pump 5 lbs is still a bit too much, it should be at 2 to 3 lbs max or you just force too much in it, how do you know it is 5-8 psi? is that what the box said or do you actually have a gauge on the fuel line?

frdmstng1986GT

about 5lbs is where you want to be with a regulator.. most electric pumps will produce much more then 5 psi of pressure.

Gtdaniel

Holley carbs recamend 5-8 psi.

is your valves adjusted,because if not it will back fire like that,but still seems to be timing.