Re: gas shooting from carb volvo aq131a
If the engine was running OK before you replaced those parts then this almost has to be the plug wire firing order. It could be that the #1 plug position on the distributor cap on your engine is not where it shows in the book for some reason. Are you sure the #1 plug wire is in the same location on the distributor cap now as the one you removed?
If you are not sure the #1 wire is in the same spot as before, AND you are certain the wires are connected to the distributor in the correct firing order now then try shifting them around the cap one position at a time, keeping them in the same order, as in move each wire one position to the left, try starting the engine, then shift them again if it is worse or the same. Just take note of where they are now before you try this. Be sure to have a water supply connected.