Outer Limits 4x4 Board

Saw a few threads about different carbies on the MQ/MK's and did a search to find anything on different carbies for GQ's but no luck.

I'd thought id ask as someone at sometime has changed the carby on my 88 GQ TB42 from a standard carby (forget the brand) to a holley.
Im not sure if it's a 320/350 or a 500, it seems to have plenty of power but is very thirsty on fuel as GQ petrols are. As i have read about what other people have said about them flooding on decents and mine also doesn't like slow uphills either, coughs and splutters and sometimes stalls (off road that is).

The reason i am asking this is there anyway i can tell what size holley i have on there and im asking people on here if they know much about holleys on GQ's or what is my best option.

i have had the carby checked and had the float adjusted and it went on a gas analyiser and the mixtures were fine but the carby is ineed of a overhaul soon. It doesn't like cold starts sometimes and doesn't idle very well either sometimes and the choke butterfly is sorta jammed.
i would like to invest in a proper 4wd carby but those things cost an arm and a leg.

any input would be greatly appreciated

regards

Sacha

come on guys someone must be able to give me some advice

slacker wrote:Saw a few threads about different carbies on the MQ/MK's and did a search to find anything on different carbies for GQ's but no luck.

I'd thought id ask as someone at sometime has changed the carby on my 88 GQ TB42 from a standard carby (forget the brand) to a holley.
Im not sure if it's a 320/350 or a 500, it seems to have plenty of power but is very thirsty on fuel as GQ petrols are. As i have read about what other people have said about them flooding on decents and mine also doesn't like slow uphills either, coughs and splutters and sometimes stalls (off road that is).

The reason i am asking this is there anyway i can tell what size holley i have on there and im asking people on here if they know much about holleys on GQ's or what is my best option.

i have had the carby checked and had the float adjusted and it went on a gas analyiser and the mixtures were fine but the carby is ineed of a overhaul soon. It doesn't like cold starts sometimes and doesn't idle very well either sometimes and the choke butterfly is sorta jammed.
i would like to invest in a proper 4wd carby but those things cost an arm and a leg.

any input would be greatly appreciated

regards

Sacha

2 or 4 barrel ?
what size jets ./ powervalve etc etc ?


a holley on a 4 x 4 is like rowing a barbwire canoe

useless

ok, it's obviously a 2 barrel, if you assume it is either a 320/350 or a 500cfm.
if you take off the aircleaner, get the list number stamped on the choke horn. that will tell me the size. standard gq carbs dont like idling or starting when cold, if not in tip top condition, so you are not missing out on much.

to make it more off road friendly, run a hose from the bowl breather up into the aircleaner, as that is where some of your problems lie, as fuel sloshes around in the bowl, it comes out the breather in big gulps, and goes straight down the throat, flooding the engine. by raising it, you stop most of that. also you can get a jet extension, for the bowl, so you dont starve it of fuel as much.

others here in the know will have other ideas for you to try as well.

IMO if you get better power, similar economy (they all use heaps of juice, even the efi ones) and ease of repair and tuning, you may as well keep it.

ill have a look later on today, the choke horn??? do u mean the choke butterfly??

yeah, the housing aroung the butterfly

ok, ill look in a while, when i get the chance thanks

ok i have looked, this is going to be hard to explain. I doubt these numbers will mean anything as i think someone has taken the choke butterfly out from the top where i think it used to be.

I only know the basics about carby so please forgive me if i have named some of the parts wrong

Has anyone tried straight LPG with a Gas Research mixer, and made proper changes, ie to distributor etc. to get the most out of it. I'm very tempted as it is cheaper than an engine conversion.

hey whats going on, hijacking my thread

1925 sounds like the list number can't find my holley book some one must've borrowed it, some one will be able to tell you.

0-80120 carb number 2305 part number is a 350 cfm holley.
found it on the web

0-80120 carb number 2305 part number is a 350 cfm holley.
found it on the web

ok this is a pretty rare carby. it is designed for 4 cyls and bigger. it is 350 cfm, and is staged, unlike a 2300 holley which is direct. it has a primary and a secondary, like a weber 32/36.

get it recoed, it is a keeper.

is it hard to reco yourself, you say it's a 350 for 4cyls but the mixtures are fine so i have been told, do i put bigger or smaller jets in it.

why do you say it's a keeper???

is it better than a standard GQ carby???

Do it look like someone has removed the choke

slacker wrote:is it hard to reco yourself, you say it's a 350 for 4cyls but the mixtures are fine so i have been told, do i put bigger or smaller jets in it.

why do you say it's a keeper???

is it better than a standard GQ carby???

Do it look like someone has removed the choke

The choke has been removed as your car is on dual fuel. if the choke comes on while you are on gas, your car will stall, as it blocks the intake

it will have been setup to run your 4.2

the carby was maybe on a gas car, but mines not on gas

ill do some more research