08-13-05, 11:15 AM
Just a quick question??? About how much of an improvement would a better throttle body give my 97 Deville??? I plan to upgrade my exhaust and I has wondering about intake improvements. Also where can I find a better throttle body???
08-13-05, 10:40 PM
I wouldn't bother. I've measured the vacuum at WOT, and with a good 3" dia intake, and a large cone filter, vacuum is pretty much non existant. A larger TB might be worthwhile if you upgrade the cams, and are making 400+hp... not before though,
ps- to answer your question, you will gain 1-3hp on a stock system.
08-15-05, 12:00 AM
I put an 80mm TB on my car. I wouldn't bother as it did nothing for my car, unless you plan on 400+ hp which I plan on making.