tunnel ram street use

[tk76]

It can be done with little issue. On the other hand if your not very good at tuning a single carb don't even bother with a tunnel ram. You also need to match cam, gears and torque converter.

X2 Yes, they can be made to work well on the street if set up correctly but I still would not waste time setting up a mild application or a daily driver with a tunnel ram.
Even though you can make them very streetable there would still be a good chance you would loose a race to an equally set up engine with a single carb.

Very true!!! It is more of a looks thing rather than a street performance setup. Yes, any stock motor would suffer from a tunnel ram and they are very bad on gas.

 

[gbondo57]

It can be done. Edelbrock street tunnel ram. It has a smaller plenum than older ones. I'm on my second build 20 years apart. This current one ran fine on a mild headered 305 in my 79 elco. Two, 390 cfm holleys, (list 8007)with 50cc pumps, #25 shooters. Drop the power valves to 5.5's. It gives you a total 780 cfm, with 4 barrels constant. The 305 actually ran stronger with the tunnel ram. I ground the longer idle screw shorter to match the screwdriver slot (parrallel)with the other. It's not perfect, but it works for me. Holley has a balance tube kit (secondary covers with vacuum ports)for $80. I found the sec covers at a salvage with old tall deck truck carbs. Find 2, run a vacuum line, one to the other. What this is for is any slightly off secondary opening is equalized. I don't see these on vac sec dual quad setups. I put this setup on the 305 to tune it and get the leaks out. It's going on a 2 to 6 grand 350 in the works. I bend up tubing, and still have a 1 in, 4 out fuel manifold block for fuel. A lite weight fuel pump pushrod helps too. AND IT DOES LOOK BAD *ss! WHEN removing choke assemblys on vac sec holley carbs, There is a vacuum port covered by the choke-it needs to BE PLUGGED. You will find it at start up. A typical short holley screw, hand screwed in, will plug it. The syptom is idle will be two high, adjusted all the way down. Pics posted in gallery. It can be done, imdoinitagain 8) AND why is it always about a RACE?!?!?