i don`t understand why so many think ram air is not effective, all normally asperated cars will benefit from a forward facing inlet that creates pressure, on my 75 duster i had a snorkel scoop 6in high and i had 2inlbs pressure at 90mph at manifold when i sealed it to the carb, bren if you have header now your slower performace is most likely jetting, headers will effect your jetting , usually making it leaner, also you have to check pressure at the manifold and make sure it dozen effect your power valve.

sweet, i'm inspired to finish my cold air i have a snorkel hoodscoop on my duster should be easy to do
Thanks, Kev

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Hooked up mine a month ago and it runs much smoother and has allot more power.

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Aggressive Ted

http://cid-32f1e50ddb40a03c.photos.live ... %20Swinger


74 Swinger, 9.5 comp 254/.435 lift cam, 904, ram air, electric fans, 2.5" HP2 & FM70 ex, 1920 Holley#56jet, 2.76 8 3/4 Sure-Grip, 26" tires, 25+MPG