340 tunnel ram

I always thought that a TR was for hi rpm operation and that doesn't happen on the street. Even most race cars don't have enough motor to sustain one (apparently) or they would have them. That's why Pro Stockers have them as did the old Modified Production cars and Gassers. The 70's Pro Stock guys used to reduce the size of the plenum, cuz it was too big even for them. Fuel atomization at low speed is poor because of the large internal volume.
Also, I grew up believing you should be able to back up the equipment you're running. I yam an oll drag racer...