talover111

i have a 1988 pontiac firebird that was originally a 2.8l f.i. v-6 w/5 speed i put a carbed 305 lg4 out of a 1987 trans am i finally got it running but have problem i got it fired up and it sat there and ran then it shut off and wouldnt start it wasnt getting fuel i put a brand new fuel pump on it and it still wont start but you pour gas in carb it will start should i take the pump out of the tank would that be the drb?

Toehead

You are trying to pull through the stock pump with a mechanical carb pump?


That can cause some problems. You should yank the pump out of the tank and use a pickup tube designed for a carb.

strokermotor91

i went to a carb'd motor from the stock 305 tbi, and all i did was cut the power wire for the fuel pump inside the tank. the wires should be sticking out on the front side of the fuel tank. I use the mechanical fuel pump and everythings works lovely.

Toehead

Some people do have problems with that setup though.

Just FYI

jimmy92rs

iTrader: (3)

i would use the in tank pump and run a fuel pressure reg (w/ a return). i dont think it is smart to pull fuel threw a electric pump from a mech pump.

strokermotor91

not really sure how its not smart, but it sure does work tho.

five7kid

iTrader: (14)

There seems to be two kinds of people out there that have tried pulling fuel through an inoperative in-tank electric pump - those who don't have any problem with it, and those who do.

If yours worked, consider yourself blessed. Everyone else either has to get the pump operating or pull it out.

If you opt to pull it out, there's a sticky at the top of the Carburetor forum about converting your in-tank electric pump pick-up to a straight pick-up.

talover111

got it running guys i pulled the in tank pump out,changed the carb and it fired right up and ran thanks for all of your help