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Vacuum increasing at throttle is opened.

Posted: Sun Apr 05, 15 3:16 pm
by Powermyster
I got the car running and out yesterday, one thing I noticed that seems to be the opposite of what I was expecting was the vacuum appeared to be increasing as I opened the throttle. She's pulling approx 16inHg at idle and this goes up around 25inHg(didn't take an exact reading)when I hit the throttle.

I had the carb off and it's all seemed to be clean and in good condition. I checked the throttle plates position in relation transition slots etc while I had the carb off. Any opinions?

Posted: Sun Apr 05, 15 6:18 pm
by Pete
If it drives well then don't fret.........

Posted: Sun Apr 05, 15 6:58 pm
by Powermyster
Thanks Pete seems to drive ok, I think I need to do a little fine tuning is all.

Just wasnt expecting those readings.

Posted: Mon Apr 06, 15 10:27 am
by Dave-R
Restrictive air filter?

Do you mean when you floor it or open it slowly?

Posted: Mon Apr 06, 15 10:42 am
by Powermyster
Could be the filter Dave. I haven't done anything with that yet and had all back together when I took noticed that.


I didn't snap in to WOT.