Quote:
Originally Posted by mreid
Great article on vacuum advance, but several misinformed posts with blanket statements like "running mechanical secondaries on the street is wrong". Just demonstrates a lack of complete understanding. Power to weight ratio is a bigger determinant than street vs. strip. Also, some street cars also run on the track and need mechanical secondaries. Properly tuned mechanical secondaries on a high power to weight ratio vehicle will always perform better than vacuum secondaries through the range of driving conditions. Add vacuum advance and you have a killer combination.
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You are the one who doesn't understand carbs. The second quoted statement above proves it.There's more to a DP carbs. than just the mechanical secondaries. I've changed a lot of cars over to vacuum secondaries and the owners couldn't believe how much better the car ran. Maybe that's why NONE of the big 3 car makers ever used DP's. DP's are designed for the track, not the street.
Run whatever you like, I'm outta here. I've been building and tuning for 40+ years. My knowledge comes from actual experience (on the track and the street) not from a Summit/Jegs catalog.
Jim