IDA3C Weber Troubleshooting Options

[Cfletch]

Hey there everyone, working on getting my 6 conversion going here and I was able to hook up a temp fuel system in place of my tank while I am waiting on a few parts. I wanted to get the car to idle with its new fuel pump (not yet regulated down to 3.5psi) rated at 5 PSI max. I wanted to get the carb bodies full of fuel and get some pressure into the system and as soon as the pump turned on with the ignition the carbs essentially started dumping fuel down my intakes. Almost as if there was an internal leak causing fuel to just enter their respective cylinders. I'm new to down draft webers so this confuses me. I popped the top off of one of the carbs and noticed the fuel level was extremely low in the bowls so it was not like the needle and seat were stuck or a float was stuck causing it to overfill. Kind of stumped here as these carbs are rebuilt. Really any suggestions are good here. the float level was set, the needle and seats are good and not sticking at all.

I read somewhere but not in much detail that the bowls are vented? I have these little plunger-esq things in each vent tube that I have not yet pulled out. Would that be the source of my problem? If the bowls couldn't vent its just pressurizing the changes and causing the fuel to just leak down into the engine?

[sixnotfour]

In General everything about those carbs is not correct spec for a stock 2.0 , venturis ..what is the jetting ?? compare to posted chart..should be like 911L on chart.. unless you have a hopped up up 2.0 ..

what fuel pump? if its the Im thinking , a shop I know of was buying them and they where the wrong pressure,, and needed a propper PN..and then all was right.

[Cfletch]

In General everything about those carbs is not correct spec for a stock 2.0 , venturis ..what is the jetting ?? compare to posted chart..should be like 911L on chart.. unless you have a hopped up up 2.0 ..

what fuel pump? if its the Im thinking , a shop I know of was buying them and they where the wrong pressure,, and needed a propper PN..and then all was right.

As mentioned, this is on a 2.7 from a 1974 CIS engine (stock).

Jetting and all carb related settings were based off recommendation from Paul Abbott and I do not have them in front of me, but know many others used the same with success so I trust those.

The fuel pump was ordered from Pelican- Pierburg pump. Pelicans number is:7-21440-51-0-INT