Anyone run a tunnel ram on the street?

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on the street ? it wouldnt work well at all. if you look at the manifolds they have rpm ranges. a tunnel is for 4000-7000. you cant really drive around with that power band. i know someone who put tight secondary springs in the carbs. they effectively turned it back to a double pumper, and limped around a large single plenum. so it was for looks i guess.

+ tickets for driving without a hood, or obstruction > 6" would add up.

the performer type manifold works great on the street. do you want to bog, or burn rubber ?

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In MY opinion.... WRONG WRONG WRONG WRONG WRONG!!!

I just have to ask mark7171.... have you ever run one yourself? So many misconceptions out there that seem to get forwarded...?


I have driven TONS of tunnel rammed 2x4bbl cars over the years, so has my wife. Her daily driver was a 440 2x4bbl 1980 Cordoba LS for years, no troubles whatsoever. A baby bath carried in the trunk was tossed on the scoop during rain when parked, that was the only hassle....



My daily driven work truck was a mild 440 2x4bbl, STOCK torque converter, it had 1 ton suspension and it was HEAVY. It would roast the tires while pulling a trailer, and could do 20mph roll ons with ease.
All UNDER the hood.



Before my Coupe was taken apart I drove it for years with a tunnel rammed 440 2x4bbl. It was a result of too many problems with a single four barrel, exposed transfer slots etc. The two 4bbl tunnel ram solved all my driveability problems!



My Demon I drove year 'round from 1991 until 2000 when I sold it, I drove it in the snow, in -14 Celcius weather, you name it. It passed AirCare emissions testing with NO detuning ever. I drove it on the rollers, passed, and drove it home. Never failed once. With the tunnel ram.
Any B.C. member can tell you what a pain in the rear the AirCare tests can be too.



Notice all the vehicles pictured also had POWER brakes.

It's the combination, if you toss two 850 double pumps on a stock 360 with a tunnel ram, odds are there will be LOTS of trouble, and everybody will be pointing at the tunnel ram.
If you build a well thought out package it will be a driveable vehicle.
It's all in the entire sum of the parts IMO.


I was going to put a tunnel ram and two four barrels on my motorhome, just for the idiocy of it all, but it wouldn't fit in the doghouse.

Besides, I woulda been in the doghouse with my Chickee....

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Ran a Wieand TR & 600 1850s on a 451, low-end torque was no problem with 4.11s, 4100 flash stall (tons of it) & the top-end power was in a class all its own , this set-up was more streetable then my single 750 & M1, Don't listen to what some tell you about TRs , if they have nothing good to say about them, its because they NEVER ran one or they had the wrong carbs & don't know what there talking about , simple as that

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My work truck was a WORK TRUCK. tunnel ram, 2x4bbls, and driven every day all over the place, rush hour traffic, summer, winter, hauling cars ON trailers etc....

Two 450 cfm Holley center floats, they worked like a dream. Never had a better running carbureted truck.

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yes but, your stories contradict my expirience. the manifolds do not produce correct velocities at reasonable street rpms. if your using hi 4000 stalls or 5 series ring gears, i dont associate those with streetable components. your combination tells me enough of whats going on.

again you cannot drive around at 4000 rpms all tunnel ram and headers. the cops will pull you over.

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Let's try this again- FIRST... who is "driving around at 4000 rpm"?
My truck was driven daily, nobody would have POSSIBLY known there was a 2x4bbl tunnel ram on it if they never popped the hood.
I never had 4000rpm stall converters in ANY of my vehicles with tunnel rams. My truck was a STOCK converter. It pulled out of the hole like crazy. It was HEAVY too.

My work truck- tunnel ram, two four barrel carbs, and headers.




I ran all sorts of gears in most of my cars, I had 5.13 gears in my Demon at one point, but I drove it on the highway. The tires were 33" tall.
My Coupe I am building now has 33" tall tires and 4.10 gears. It will be VERY highway friendly.

It's all about the package IMO?

I have never been pulled over because of a tunnel ram, never had any cop mention anything about my tunnel rams. Maybe it's where you live, but where I live the cops could care less.
I had an Australian visitor who said I couldn't drive through town in a tubbed car without being in big trouble. I drove tubbed cars for decades and decades where I live. Nobody cares.

What experience do you have with a tunnel ram? Engine specs, vehicle, carbs etc? Tell us what you ran?

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All I know is from my experience. My 528 Hemi is running around with 4:10 gears,(until I get a 4:56 dana). 31" tires. I've got a Weiand Tunnelram with 2 modified 750 eddies, with ram air box and filter all UNDER the hood. The cam is 272/274@.050, 5000~stall convertor. The carbs are tuned with an LM-1 meter and it starts, idles, runs beautiful in stop-in-go traffic, will smoke the tires from a 50 mph roll,or completely shread them at lower speeds. Throttle response is as good as any single or duel plane I've ever run. It also got 10mpg the last time I went to cruise nite, 100+miles round trip. It also pulls and pulls and pulls, at 7000rpm it's still pressing you back in the seat with no end in sight. Dave

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And if I was in a single 4bbl well built CAR, I would be hesitant to pull beside you....

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yes but, your stories contradict my expirience. the manifolds do not produce correct velocities at reasonable street rpms. if your using hi 4000 stalls or 5 series ring gears, i dont associate those with streetable components. your combination tells me enough of whats going on.

again you cannot drive around at 4000 rpms all tunnel ram and headers. the cops will pull you over.

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When i said 4100 "flash" stall, thats what i ment, it would foot brake to 2000 before busting the tires loose, theres a BIG difference between flash stall & foot brake stall, if you ever ran a GOOD quality converter, you would no this, i ran all over the place with a 4000 unit.

If you would stop listening to the CHEBBY guys & listen when we say "THEY WORK" on mopars, i'm not saying to put a TR with 2 750 DPers on a 8.1 318 with a stock converter & 2.76 gears, you wouldn't be too happy

But a mild to moderately built SB or BB with 4.11s & a nice street converter, put on the right carbs & your set.

I put mine together with 2 swap meet 1850-2s that i paid 15.00 a piece for, hooked up the fuels lines, the car was sitting for 3 weeks, i put (3) 1/2 throttle pumps & it fired right up & idled at 1000 rpm, i was to say the least, throttle responce was un-frigin-real, when i drove it around, i was at all the guys that told me it would be a big mistake.

TRs were the hot ticket back when i was a kid, they worked then (on the street from stop light to stop light) & they work today, there just making a big comeback, have i said enough , i'll shut up now

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if you answered NO.... then butt out! your opinions are not really backed up with anything other then wives tales and crap!

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its the same as the clowns that go around telling everyone that a big block A-Body won't handle at all.. and how they are only good for striaght lines...

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hey, mine was tubbed with 19.50s, it handled better than I'm willing to say.

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i have been replying to these posts for years, and they bug me....


i'll bolt on a dual plane and I bet my car will be slower...

a 3430 lb car with 3.23's and stock smal valve heads in the mid 12's?? nope....

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DJVCuda, your advise has not been waisted. I just got back from putting 390s on my brothers 340 Swinger with M1 T ram and it runs GREAT !!! We got a pair of rebuilt, but zink ? coated(better than new), 390s from a carb shop on Long Island (ebay). The car has sat for the last few yrs because after cutting and repainting the hood and getting it all set up for the T ram it ran like hell with 450s on it, and my brother lost interest. Now after bolting on these carbs and a little tweeking it runs smoother than it did with a single 625 carter and LD340 intake. We will be getting it all cleaned up and driving it 3 1/2 hours to Carlisle next month. THANK YOU VERY MUCH , you were on the money with your advise

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Seems the big block mopar is fine with tunnel rams on the street but big block chevies are very sluggish down low.

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Dan.... You gotta stop by and say HI at calisle!!!

Glad to hear about the progress!!!

that made my morning!

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I will be on the lookout for your car. My brothers car is a 70 petty blue Swinger with black tail stripe and wing, blower scoop and either centerlines or slots. See you there

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Most of these guy's would never consider driving their cars as drivers. Tunnel rams are okay for racing and looking cool but being practical on street? not!

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Most of these guy's would never consider driving their cars as drivers. Tunnel rams are okay for racing and looking cool but being practical on street? not!

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I sure hope that assesment is now defunct!

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yup....good memories and lotsa fun running a T-RAM on the street. i think i'll shelve the LD340/TQ combo for now, whip out the credit card and get the WEIAND T-RAM W/ DUEL 450cfm HOLLEYS from summit then go chevy hunting