Carb Selection for 340 Engine

[gzig5]

I have to agree with a vacuum secondary on a stockish automatic and a double pumper on a manual especially if it is warmed up a bit. You might be best off pulling the tank so you can pull the sender out and have a look in there. Body fuel lines are bit of a challenge to replace when the car is assembled but if there is any concern it is not something to take a chance with. Pulling the fuel filter should give you a hint of what is in the lines and tank.

Good info on the carb type, thanks.
I already have a hint of what is in the tank and lines.    This is the front bowl of the carb that was on the car and wouldn't run.  The other pic is the damaged fuel pump that was on it and the fuel and crap that came out of it.  I'm sure the tank and lines look the same and I don't think I want to mess with cleaning them at this point, so it will likely be new stuff.  Tank coming out this weekend. RFQ in to Roseville for a tank kit. 
I'll look at the line routing but from what I remember, fitting a prebent line with the suspension in would be "challenging".  Probably hack a fresh line from bulk material for the time being following the general path of the original and keeping it out of the way.

[gzig5]

@Shane Kelley  do you have a Holley PN or "family name" for the carb you are running?  650 cfm selection seems limited but there are a bunch of 670's.

[303 Mopar]

@Shane Kelley  do you have a Holley PN or "family name" for the carb you are running?  650 cfm selection seems limited but there are a bunch of 670's.

Shane is running a Quick Fuel Technology carb, which is great! You can also get a Proform 650 carb that actually uses some of the same parts for sometimes less money.  I run Proform's on 2 of my cars and love it, easier to tune and again it was less money for the same parts.

https://www.summitracing.com/search/product-line/proform-street-series-carburetors/cfm/650/fuel-inlet/dual

https://www.summitracing.com/search/cfm/650/fuel-inlet/dual?SortBy=Default&SortOrder=Default&N=400990

[Chryco Psycho]

Anyone who knows me knows my answer , if you are going to replace the carb anyway Get a Proform 650-670 CFM , I prefer the mechanical secondaries
No doubt the fuel system is not healthy in your car !

[gzig5]

@Shane Kelley  do you have a Holley PN or "family name" for the carb you are running?  650 cfm selection seems limited but there are a bunch of 670's.

Shane is running a Quick Fuel Technology carb, which is great! You can also get a Proform 650 carb that actually uses some of the same parts for sometimes less money.  I run Proform's on 2 of my cars and love it, easier to tune and again it was less money for the same parts.

https://www.summitracing.com/search/product-line/proform-street-series-carburetors/cfm/650/fuel-inlet/dual

https://www.summitracing.com/search/cfm/650/fuel-inlet/dual?SortBy=Default&SortOrder=Default&N=400990

The reason I asked was the Holley site seems to have about fifteen model families under the QFT banner and very few were vacuum 650's.  I'm hopefully getting ahead of myself regarding a new carb at this point but it is fun to consider it.  I don't think I've ever heard of the Proform but will be looking into the details on them.

[Katfish]

I'll say it again, before you spend $400 - $500 on a carb, think about going ahead and spending the extra and get EFI.  I think the price has come down to $800.
I know others say their carbs run "fine", but you'll always have evaporation and hot and cold start issues.

[Shane Kelley]

@gzig5  This is the one I run on the automatic.  There is no choke provision on this one so depending on what your looking for it may or may not be your best choice.

https://www.summitracing.com/parts/qft-q-650-pv/overview/

If you want a electric choke I would recommend this 680 cfm

https://www.summitracing.com/parts/qft-ss-680-vs/overview/

The Proform's that 303 and Chryco mentioned are quality built also. For the same those guys recommend Proform is the same reason I recommend QFT. I run them because I have plenty of experience using them and have to complaints. Lots of ability to really fine tune them but run excellent right out on of the box. 

[gzig5]

Thanks guys.  Good stuff to chew on.  Considering it's barely broken 32 degrees here the last week or so and won't in the near future, I'm going to need a choke.

Katfish-  FI isn't out of the running, but the priority in the near term is to get it running as inexpensively as possible in order to direct funds at the large number of other stuff to be addressed in the near term.  To reach my ultimate HP goal I'll be getting into the motor down the road and I don't want to commit extra money to the fuel system before I know what that is going to look like.  I know I can get it running pretty well, cheaply with a decent quality/condition carb.

[RUNCHARGER]

You can install the prebent lines in an assembled car it is just a bit tricky. They come bent in half anyway so what you do is feed them in from the middle of the car. I've done it but I forget if I had to feed the front in first or the rear.

[Chryco Psycho]

FITech seems to be about the best Throttle body FI system , youy can multiply x 4 if you go to multiport FI

[Bullitt-]

Low Cost ?   Gentleman I used to work with once worked at Holley in their refurbishment department said these were better than new out the factory....  https://www.ebay.com/itm/Holley-0-3310S-750CFM-Vacuum-Secondary-Carb-Factory-Refurbished-4bbl-/362286314777