Different carbs on dual tunnel ram

-
AJ/FormS said:
Can you imagine that ! That is what I would try.
Click to expand...
HEMI TQUAD.jpg
 
I have a friend who ran two Quadrajets on a TR1Y, with a couple adapters, many years ago. It worked surprisingly well. (Surprised me, anyway.....).
 
Garrett Ellison said:
In the AVS2 instructions I had, edelbrock recommended using a manual choke on one carburetor only and wiring (or mechanical fouling) the other choke open on dual carburetor setups. They have a pair of 1903 manual choke carburetors (500cfm) that come pre calibrated for a two four setup. When you get to where you are talking about going with a 4 inch crank and high lift cams with good heads, it’s time to graduate to a pair of sideways mounted 4150 Holley type carburetors, though.
Click to expand...
Funny you mentioned that. My STR-12(which I purchased from a member here 5 years ago) came with #2694 Standard flange side-ways adapters .550 inches thick which he included to mount Holleys sideways. It also came with the linkage which an Edelbrock tech told me were hard to come by. However the tech also told me that Edelbrock recommended (back when these STR-12s were released) that two Holley list 4776 600 cfm carbs or two 6777 650 cfm carbs mounted facing forward should be used.
 
Last edited:
Garrett Ellison said:
In the AVS2 instructions I had, edelbrock recommended using a manual choke on one carburetor only and wiring (or mechanical fouling) the other choke open on dual carburetor setups. They have a pair of 1903 manual choke carburetors (500cfm) that come pre calibrated for a two four setup. When you get to where you are talking about going with a 4 inch crank and high lift cams with good heads, it’s time to graduate to a pair of sideways mounted 4150 Holley type carburetors, though.
Click to expand...
Edelbrock tech told me the 1903 carbs calibrated for dual quad applications, are suited more for low rise dual plane dual quad set ups, not tunnel rams, where the carbs will share a larger common plenum. For that application 1902 500's or 1905 650's were recommended.
 
RRR,
Post #29. Do have any more info on that combo, such as parts, hp, etc?
 
Bewy said:
RRR,
Post #29. Do have any more info on that combo, such as parts, hp, etc?
Click to expand...


Like I said I haven’t talked to him in awhile. I don’t have his number in my new phone but it is in my phone book at home. I haven’t seen him post on the web in quite some time.

I do know he has a dyno at his shop at the house and he has flogged that combo pretty good. I can’t remember what it made for power but it was a good number.

I hope he is ok. I suck. I can’t even think of his name. He helped me out a bunch several years back. Super nice guy.
 
Rat Bastid said:
Like I said I haven’t talked to him in awhile. I don’t have his number in my new phone but it is in my phone book at home. I haven’t seen him post on the web in quite some time.

I do know he has a dyno at his shop at the house and he has flogged that combo pretty good. I can’t remember what it made for power but it was a good number.

I hope he is ok. I suck. I can’t even think of his name. He helped me out a bunch several years back. Super nice guy.
Click to expand...
IQ52?
 
cpearce said:
I'm in the process of putting 2 Edelbrock 1905 650 AVS2 carbs on my Holley pro Dominator W2 engine. About to order a 6 pack hood to enclose it all. I personally prefer the contained look. Just looking around for a second 1905 Edelbrock.
Click to expand...
@cpearce
Any progress report on your project, specifically on how the carbs are working and ability to tune them? I'm still a ways out on mine but I'm in parts gathering mode.
 
gzig5 said:
@cpearce



Any progress report on your project, specifically on how the carbs are working and ability to tune them? I'm still a ways out on mine but I'm in parts gathering mode.
Click to expand...

gzig5 said:
As it is winter here I am collecting the last of the fittings, linkage, etc to get this all setup. So far the six pack hood is on for clearance, and carbs have had chokes fully removed. In the 650 AVS2 carbs I have replaced the primary boosters with those out of the 500 AVS2 carbs, this can be done as the primary bore size in the 500 and 650 are identical, just a physically larger booster in the 500 makes the CFM difference on primary side. For initial testing I have jetted and rodded the primary side as if they were 500's. I have effectively turned my 650's into 550's, with the ability to put the 650 boosters back in if I need more. I didn't want to pigeon hole myself by purchasing 500's. Just sorting out linkage and fuel lines currently. I am really looking forward to the results of this myself.
Click to expand...
 
You must log in or register to reply here.
-

Back
Top