Don just like everything else you have to try to know if it will or not, when I sealed mine on the 408 it picked me up 1.5 in ET and 1 mph but the scoop was on the car already with the 366 so I don't know if that helped or not or how much, the one thing that I found out was that I had to put a blocker plate in at the rear of the scoop to close up the cavity at the rear of the scoop it self because it would go turbulent enough to suck fuel out of the bleeds at higher speed's and would cause the car to become inconsistant, I used to have pic's of the gas stains from the bleeds running down into the carb.

I put a fiberglass hood with 6 pak style scoop on my charger, sealed it to the carb with an air cleaner. dropped nearly 4 tenths of et and picked up 3.5 mph in the quarter. I then added a wide band o2 in the exhaust, further tuning dropped .08 of et and another .5 mph. Definitly worth money and effort.
Almost forgot to mention that with the hood scoop I was able to add a 1 inch plastic spacer under the carb. I didn't test them seperatly so I don't know what the improvement is seperatly.

dogdays: X2

There are lots of other pick-up points for cold air, the 442 used under the bumper for a while. Andy Granatelli used trumpet horns in place of the headlights in a 1960 Chrysler 300 at Daytona.

[img:left]https://www.jalopyjournal.com/forum/attachments/1961prep-jpg.883742/[/img]

A scoop 'done correctly' on your car will be worth at least a solid tenth. Also as has been said consistency will gain.

My parents new '71 383 auto (3.23 open rear end) Road Runner had the "air grabber" hood. It ran about 15.00 (showroom stock) in the quarter mile. Opening the "air grabber" apparently had no effect over running with it closed. I believe it is a very difficult proposition to accurately test the results of any "cold air" induction system. The difference with/without seem to be minuscule at best or generally downright impossible to determine.