Carburetors Carb discussion and questions. Upgrading your Third Gen's carburetor, swapping TBI to carburetor, or TPI to carburetor? Need LG4 or H.O. info? Post it here.

return line or no return line

Thread Tools
 
Search this Thread
 
Old Mar 18, 2007 | 07:39 PM
  #1  
sj85ta's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2007
Posts: 13
Likes: 0
From: Saint John New Brunswick Canada
Car: 1985 Trans AM
Engine: 305 HO
Transmission: 700R4
return line or no return line

Hi I have been reading for awhile on here to try and find this answer but have had no luck I will be installing a Holley Red electric fuel pump in my 85 TA for my switch to carb and removing the old intake pump because it does not work. what do I do with the return line should I get a regulator with a return or just block it off ? I know by reading here that the other line that use to go to the canister can be feed out by the fender.What have you guys done
Reply
Old Mar 18, 2007 | 08:43 PM
  #2  
84z28350's Avatar
Supreme Member
 
Joined: Aug 2005
Posts: 3,004
Likes: 4
From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
It will be alot easier on the pump to run a return line rather than 'dead heading' the thing.
Reply
Old Mar 18, 2007 | 09:04 PM
  #3  
Apeiron's Avatar
Moderator
 
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
The Holley red has an internal bypass, so you could omit the return line. Running a return-style regulator at the engine would help keep fuel temperatures down, though.
Reply
Old Mar 18, 2007 | 09:21 PM
  #4  
sj85ta's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2007
Posts: 13
Likes: 0
From: Saint John New Brunswick Canada
Car: 1985 Trans AM
Engine: 305 HO
Transmission: 700R4
when you say omit does that mean block it off or just take it out from the tank as I will be dropping the tank this next weekend and I need to know what to do with all the lines comming out of the tank? Hope that is not a stupid question as I am learning all this here as I go.just updated my info so you could see that I am also from Canada.
Reply
Old Mar 18, 2007 | 09:34 PM
  #5  
84z28350's Avatar
Supreme Member
 
Joined: Aug 2005
Posts: 3,004
Likes: 4
From: Yellowknife, NWT, Canada
Car: 84 Z28
Engine: 357
Transmission: TH-350C
Axle/Gears: 3.43
he meant to run a dead head style regulator.

But like ape said, running a return style reg will help to keep the fuel cooler from the circulation...
Reply
Old Mar 18, 2007 | 09:38 PM
  #6  
sj85ta's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2007
Posts: 13
Likes: 0
From: Saint John New Brunswick Canada
Car: 1985 Trans AM
Engine: 305 HO
Transmission: 700R4
I have a mallory 4309 regulator I bought awhile ago before I found out the pump in the tank was no good should I run that with the holley red to my edelbrock 1406 carb.
Reply
Old Mar 18, 2007 | 09:54 PM
  #7  
Apeiron's Avatar
Moderator
 
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
If you've got the regulator already, you might as well go ahead and use it.
Reply
Old Mar 18, 2007 | 09:58 PM
  #8  
sj85ta's Avatar
Thread Starter
Junior Member
 
Joined: Jan 2007
Posts: 13
Likes: 0
From: Saint John New Brunswick Canada
Car: 1985 Trans AM
Engine: 305 HO
Transmission: 700R4
OK thanks for all the help you guys have been great
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
GeneralIesrussi
Carburetors
6
Jun 20, 2024 07:21 PM
13sec83trans
Carburetors
22
Nov 28, 2015 09:26 PM
R13_Braz
LTX and LSX
22
Sep 18, 2015 05:00 PM
armybyrd
Carburetors
25
Sep 13, 2015 01:49 PM
TBRays98
Tech / General Engine
6
Sep 6, 2015 05:05 PM




All times are GMT -5. The time now is 11:01 PM.