Can the weiand tunnel ram fit under a 4" cowl hood?...if not will i have to go to 6"?...i was going to measure off the front of the first carb down to the hood but i wasnt sure if it ends up measuring 4 inches where the 4 inches on the hood actually starts...

if that was too confusing ill try again....where does the actual 4" of cowl height start from the back of the hood?...

I dont have to buy a cowl hood im just looking for something that will clear the intake and carbs...

thanks chas

 

do you really need a tunnel ram?, i would say 6" maybe

the size is total, the front carb would be the issue. It also depends on the manufacturer where the max size starts

 

a 4" no way, maybe a 6" but how goofy is that going to look, might as well have em sticking out

 

well i was going to let them stick out but i want to be able to run it in the rain if need be (like a freak rain storm) and dont want to have to cover them with a plastic bag if i stop somewheres or stay the night...i like them sticking thru the hood but the hood is in rough shape...and i cant drive in the rain(well i dont like too)

 

Maybe you can judge from this pic how far they stick out. I dunno if this a weiand, but its a tunnel ram for sure.

 

a tunnel ram is probably the worst thing you could put on a street engine, its made for high rpm power, not low rpm torque.

Do you really need it or is it just for looks?

 

Ditto for what 86TA is trying to say. You need a minimum 11.5 to 1 ACTUAL CR to see any effects at all. Plus the gas you will burn needlessly could be put to better use. If its for looks and street use, make sure you get small carbs.

I dont think a cowl would work, you might be better off with a scoop.

 

i bought the car with the tunnel ram already installed with holley 1850 600 cfm carbs...i was just looking at the scoops on summit and like the look of a few of them...i would go to a single carb and intake setup but i dont want to sink the money into new carb and intake...

the car runs good up until the secondary vacs open then i notice a lot of sputtering and lunging...im guessing they open around 3500 b/c thats when the car starts to run crappy...once i open her up to around 5k a couple of times the sputtering stops for a lil while...

my guess is that the engine is just getting dumped with fuel and is fouling plugs...i was told to run a little hotter plug b4 adjusting too much...but i think im going to lean out the secondaries to try and make up for the extra fuel...

 

I can't imagine needing the secondaries until well past 5500 RPMs for a 350. You're way over-carb'd, way over-intaked, and it's going to run crappy regardless of what plugs are in it.

Sell the intake and at least one of the carbs, get a replacement intake that compliments the cam (probably a Performer or Performer RPM).

 

It is a 350 bored .60 over with a performer rmp cam already in it...

 

sell the intake and both carbs, buy a performer rpm intake and 650 holley double pumper and then tune from there. No huge cowl needed for a 300hp engine.

 

I'd believe bored .060" over. Still, that means marginal cylinder walls.

Anyway, a single 600 CFM carb will feed 360 cubic inches to 5800 RPMs. A 100% VE 360 spun to 6500 RPMs (the advertised top RPM range of the RPM cam) only needs 675 CFMs. Properly tuned, the secondaries of those carbs will barely open. Most likely, they aren't properly tuned.

A tunnel ram on a street engine is pure bling. If you're into bling, try trading those carbs for a couple of 390 CFM units (you'll still be over-carb'd). Either way, your driveability, mileage, and power would be improved with a Performer RPM intake and single 650-750 DP Holley. And, you wouldn't have the expense of a different hood.

 

sry i meant .060...my fingers were typing faster than my mind was thinking...i will probably end up keeping the tunnel ram and just buying a intake and a lower cowl hood...the cam's power band is 1500-6500 so im guessing i want to buy an intake around that same power band...will the 600 holley be enough for that intake and cam setup for now?...like will it run smoothly and still give me the torque and acceleration i have now?...

 

One of the 600 CFM carbs will be slightly undercarbed, but will run smoothly and probably better than what you have now. A Performer RPM or Weiand Stealth intake would be just right.

 

you should get the street mini tunnel ram with some 390s

 

Saw your other post on the board, and noticed the second response was something like, love the car, hate the ugly carbs stickin out of the hood.

I guess thats why you started the thread about getting a cowl.

Having had a tunnel ram setup, i can vouch for what the people are trying to tell you in THIS thread, and you will discover the same for yourself.

You need to decide whether

1) You want bling,
2) You want fast.....

By the post i quoted you on, it seems like you want the latter....

The guy i bought my car from had the tunnel ram in my firebird before i purchased it. Aparently it made a good noise, and he claimed it was fast, but he said it literally cost him $20 everytime he went to the grocery store.... He had to get rid of it, cuz the car was parked 9/10 times and he couldnt afford it.

Instead of getting a combo that complimented the engine (well built otherwise) he stuck a factory q-jet and intake on there, so now the car was way fuel starved.

I bought the car, drove it in its fuel starved state for about 2 years (saved up some money) and then i bought an RPM air-gap intake, a holley 750 DP, and some headers. With this combo, the car has just as much power as with the tunnel ram (but probably more), its MUCH nicer to tune, and its MUCH better for gas. And guess what, it all fits under the hood. Total cost was $270 for intake (new), $300 for carb (used), $200 for header install.

You can get an RPM used now fairly easily, and same for the other two.

If you are set on the bling factor, you need max 390cfm carbs, but id say go with what everyone is saying and get a better intake and carb combo.

Go either 650 DP or 750 DP, or you wont be happy. 650 is plenty of carb for the engine, however sometimes its not enough. 750 CAN be too much, but works well if you jet it correctly.