HELP!! Boat backfired, now idles real high

[WVspeedfreak]

Boat backfired, now it idles real high. Check out my thread in blower motors about my problem...thanks

[Schiada76]

Replace the power valve.

[howardflatty]

make sure the butterflies arent bent.

[Fiat48]

http://www.holley.com/data/TechServi...wer_valves.pdf

[flattie]

Heres the answer mine did the same thing once I blew one of the vacume caps off the carbs and created a vacume leak tell me if Im wrong
Hope this helps

[Warp Factor]

Check the gasket on your backfire valve on the manifold. You probably have a vacuum leak there.
A backfire wouldn't reach the throttle butterflies or anything else on the carbs with a blower, except the power valve, and only then if you're boost referenced.

[Cortez24Lee]

If it's Holley probably the power valve they make a fix for this for the older carbs new ones already have it. just my 2cents How did I miss the blower? nevermind