Originally Posted by chevyart
one of the guys on our forum swears that a tunnel ram(on a street car with moderate horsepower outperforms and out dynos and out does everything over a single plane. i think maybe a tubbel ram may perform well in a world above 7500 rpms, but down low i just think its a waste and only may look impressive. what do you guys think. he also states that 2 600 cfms carbs on a tunnel ram only equals 600 cfms and not 1200 cfms. what is that statement all about i dont ubderstand that thanks chevy art
As far as a tunnel ram on the street, I agree that it would be a dog, an old style one anyway, they are best suited to high rpm reving.
As far as the statement 'he' made about the cfm, he is wrong, if all 8 barrels are open (WOT) the engine is sucking air via 1200cfm's worth of carbueration.
On a side note:
If I was wanting to build a moderate level street car engine with good driving manners and performance I wouldnt even consider a tunnel or a single plane.
A dual plane intake like a performer RPM or performer RPM air gap would be a much better choice.
JMO, Cp