89 W-250 TBI to Carb?

tbreaden · 09-19-2007, 02:19 PM

I have a 89 W-250 I am going to switch from Fuel injection to carb. I am changing dist. and putting on a 600 Edelbrock carb. My question is about the in tank fuel pump. Should I run a regulator with bypass or can I add a inline electric fuel pump and will it pull fuel through the in tank pump if not hooked up? Thanks, Todd

1 Bad Mirada · 10-10-2007, 11:19 AM

interesting...im not sure if there is anything to prevent the inline electric filter from drawing through the stock filter...

SixtySixDeuce · 11-05-2007, 03:16 PM

You'll have to remove the in-tank pump and install either an in-line electric or conventional mechanical pump. The TBI pumps run 5 times the pressure an Edelbrock carb can take.

CAT-TECH · 01-17-2008, 06:36 PM

Ive heard of guys still running there in tank pumps but just "unplugging" them and runing a inline electric fuel pump, I really dont know if it works though...

hillbillyape · 01-20-2008, 02:18 AM

I have an '88 318 that had TBI. I installed a cast 4 barrel intake. You may have to remove the intank pump and lengthen the pickup tube and screen .I don't think it will draw throught the pump. My engine is in a '63 panel using a different tank. My big problem is the distributor. My engine has a hydrolic roller cam, yours may not, but I cant find a dist that will work. An older point type dist is 7/16" too short and will not engage the drive gear. I'm still looking for answers.

09-19-2007, 02:19 PM	#1 (permalink)
tbreaden Junior Member Join Date: Sep 2007 Posts: 1	89 W-250 TBI to Carb? I have a 89 W-250 I am going to switch from Fuel injection to carb. I am changing dist. and putting on a 600 Edelbrock carb. My question is about the in tank fuel pump. Should I run a regulator with bypass or can I add a inline electric fuel pump and will it pull fuel through the in tank pump if not hooked up? Thanks, Todd

11-05-2007, 03:16 PM	#3 (permalink)
SixtySixDeuce Shooter Join Date: Oct 2007 Location: Colorado Posts: 17	You'll have to remove the in-tank pump and install either an in-line electric or conventional mechanical pump. The TBI pumps run 5 times the pressure an Edelbrock carb can take. __________________ *Wanna make those folks with the rice rockets close thier mouths? Just mention the word "torque" and watch them shrink away.*

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10-10-2007, 11:19 AM	#2 (permalink)
1 Bad Mirada Administrator Join Date: May 2006 Posts: 81	interesting...im not sure if there is anything to prevent the inline electric filter from drawing through the stock filter...

01-17-2008, 06:36 PM	#4 (permalink)
CAT-TECH Member Join Date: Jan 2008 Location: Cali Posts: 42	Ive heard of guys still running there in tank pumps but just "unplugging" them and runing a inline electric fuel pump, I really dont know if it works though...

01-20-2008, 02:18 AM	#5 (permalink)
hillbillyape Junior Member Join Date: Jan 2008 Posts: 4	I have an '88 318 that had TBI. I installed a cast 4 barrel intake. You may have to remove the intank pump and lengthen the pickup tube and screen .I don't think it will draw throught the pump. My engine is in a '63 panel using a different tank. My big problem is the distributor. My engine has a hydrolic roller cam, yours may not, but I cant find a dist that will work. An older point type dist is 7/16" too short and will not engage the drive gear. I'm still looking for answers.