can my 350 handle the 2-4 tunnal ram it has - Hot Rod Forum : Hotrodders Bulletin Board
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Old 06-18-2007, 09:11 AM
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can my 350 handle the 2-4 tunnal ram it has

i was givin 76 monza it was runnin and i drove it home but it had a hesitation from idle till bout 2500 rpm. when at stop and stomp it, motor would take big breath and choke sometimes back fire threw rear carb. my uncle had car from high school and ihave been tryin to bring it back to life . 350 chevy he had tunnal ram with two 450 holleys, stock monze exaust no headers. 350 trans 3000 stall.

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Old 06-18-2007, 09:29 AM
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It sounds really wicked. Depending on what heads it has on it, it would handle it. If it were mine, I'd put a nice street head on it (180 - 190 cc intake runner) and a nice set of headers on it. That will help you get the most out of the dual quads.
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Old 06-18-2007, 09:34 AM
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Yank the carbs and freshen them up if the car sat for a long time. Sounds like lean backfire/ not enough initial timing. That should keep you busy for a bit.



Larry
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Old 06-18-2007, 10:46 AM
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green monzter, what you describe is classic tunnel ram behavior. TRs were designed for high-rpm performance, as you have observed with yours "coming in" at 2500. They can be a real PITA for normal street driving. I have friends who are running TRs on the street, but they are constantly fussing with them. You definitely need a 2500 or better stall converter. You may want to disconnect one of the carbs, especially if you don't have progressive linkage.
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Old 06-19-2007, 02:01 AM
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Carb Problem?

Since this has sat for a while do kit the carbs,the older Holleys were bad for blowing out the power valves especially after a backfire,the newer power valves have been improved.I have found that when running a tunnel-ram on the street drivability will improve by going down in power valve size from what the carbs came with.You might want to get a copy of HP Books Tuning Holley Carbs,lots of good info there.And get some headers on it,"cause what goes in must come out!"
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Old 06-19-2007, 08:01 AM
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hey fellas thanks for the info. i need all the help i can get. this car has sit abou 10 yrs he pulled it once in while to nock dust off. since i got it ive completed body and paint. it got some fresh parts too mallory ignition taylor wires carbs been jetted down. two 450 holleys mechanical secendarys. iv though for most part the problem was in the heads and stock manifolds. 194 heads uncle said he had em milled so compression is in 11s. the one thing that cant figure out is my uncle said he pluged power valves in carbs why?
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Old 06-19-2007, 08:21 AM
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If the car was a drag only, plugging the power valves is normal. On some TR applications, you have such low vacuum, you would need a small numbered power valve. When cold, they could actually be opening due to the shaky idle.

Definately get some new gaskets in these carbs. Use liberal amounts of a good carb cleaner. Spray all passageways and little openings. The little tube that comes with the can is for letting you direct the cleaner into the small openings.

I have always had the best luck with BerryMan's carb cleaner. I keep several cans on hand. I typically used one can per rebuild on a running carb and 2 to 3 on one that had been sitting.

The time and $$ you spend freshening up the carbs will pay you back right quick.
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Old 06-20-2007, 09:40 AM
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all the info has helped me understand more about the sacrifice of runnin tunnal ram . but i think it looks cool and it can be intemidating to those who dont know. what would be the ideal cam for my application cause i sure the one i got cant be it. and what about the milled heads culd this cause a problem if i wanted to try 1.6 rockers. i have so many questions and i cant think of them
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Old 06-25-2007, 11:45 PM
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not exactly sure on cam duration my uncle knows and he told me once. i find out what he knows. what would be a good cam choice for my set up. i prob wont race it but i dont want to kill it at the light if i had a competitor. like say your run of the mill teenager wit the 93 pony 5.0 . cause now i gotta slowly bring up the rpm's or it will fall on its face. back fire sometimes or just die. the manifold vac. was 3.5
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Old 07-02-2007, 10:38 PM
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Good advice from F-bird! With a 3000 stall converter and a properly tuned engine that tunnel ram should work just fine. Get the idle circuit and initial timing dialed in like F-bird recomends then move on to main jet, enrichment circuit tuning and timing advance curve or lock it out at full advance and give her a try-might not like to start at that setting though unless you kill the ignition untill the engine is turning over well. Some 4.10 gears would also really help a lot!
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Old 07-02-2007, 10:40 PM
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Do a compression test and let us know what she is pumping, this will shed some light on how well the combination of internal parts are matched.
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Old 07-05-2007, 05:44 AM
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From the top

carbs: holley 450cfm mec.secondary

intake: weind tunnal ram #1980

cam: cam dynamics 284-284 228-228@.050".480-.480" 112lsa

heads: stock gm head 194s they have been milled

block: 350 sbc .030 keith black flat top pistins

ignition: mallory

exaust : stock manifolds been savin for headers

trans: turbo 350 been threw freshin up 3000 stall

rear end: 373 10 bolt from late model S10

this to the best of my knowledge is what im runnin
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Old 07-05-2007, 08:52 AM
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Quote:
Originally Posted by VETTEMAD07
and ill shuv my fat kok up her azzzzzz...see if she can handle that..hahahahahahhaha
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Originally Posted by VETTEMAD07
THE QUESTION IS CAN YOUR SLUT WIFE HANDLE MY KOK UP HER AZZZZZ *** WHILE SHE IS SUKING ON MY NEIGHBORS KOK :
As a Moderator here ... I have just suspended your posting privileges for 60 days ...

You have a filthy mouth ... and contribute nothing to the site.

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Old 07-17-2007, 11:29 PM
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cheked alittle deeper into my long block and found the heads are 62-67 off 327. 1.94 intake 1.60 exaust 60cc chambers they were milled .050 and compression is 11.5:1 . i almost ready to get back out on road but a couple little paint issues still and i am lookin in to some eldabrock carbs. like a couple of 500 cfm s . or should i work with my holleys? i am on a budjet but also would love to solve this riddle once and for all
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