What Mike said. A racing intake that is not meant to idle below 1000rpm and a powerband of 3800-7500+, well, its not meant to be. BUT, if you do this, that and the other, you can make them do well enough for a street ride.
Sure, it looks awesome, BUT, for the members that aren't into tuning all out competiton motors, it can be harrowing.
If a person wants to run 2- 4's, I'd say go with a 2x4 Alum. hi-rise intake. Alot more streetable, better mids, and thats where the action is at on the street.
I have built 900+ cu.in. mountain motors for the masses, and they're getting the alum. sheetmetal intakes running the 1050 Dom's, and they get to a point to where they want to be consistent during runs. They can run smaller motors on the bottle and run just as fast. A bigger motor, making things a little less wild, will get more consistant runs. The operative word here is consistant....
To run a motor on the street, if you have a all out motor that has a power-range of 3500-7500....your gonna be miserable. You'll have to burp the throttle constantly to keep her cleaned out, never letting her idle below 1100 rpm. Alot of this is the cam, some of it is in the heads, but alot of this is in the intake manifold itself.
IF, I repeat, IF you want to run a tunnel on the street, there are certain things that you will have to do. But lets not put the cart before the horse just yet. If your able to buy one of the new street tunnels, things will be better. All you have to do is buy the carbs they suggest for it. Done deal.
See, the new street rams are optimized for low rpm airflow, and the plenum volume has been designed for street performance. But still, this thing is a racing beast. And will act like one once you hang your foot off in it.
Now, if your a low bucks kinda guy, you buy a Weiand tunnel thats meant for racing or a TR-Y1....you'll have to do the usual small carbs, tune, tune, tune....
They can be made to run on the street, and I've had good luck with them. The only thing I have trouble with is a very slight stumble just above idle....but you can tune around that....
Alot can be said for the tunnels with the single 4 tops. Made mostly for boat racing back in the day. Get your favorite smallblock, add a good RV cam, good heads with some porting, some good headers, a tunnel with a single 4bbl, add a 650-750 doublepumper, and watch your rear tire tread disappear!
The single 4 tops are so much fun, they're freaky! I love them! The next cutting edge thing that seems to be working out great, A tunnel with EFI throttle bodys. They're awesome....in perfect tune all the time....and they idle great to boot.
That was a real pity, because data recorders never lie.
