[ffcagle34]

I am rebuilding my Q-jet carb and trying to get info on a carb spacer. Any info on benefits (are they worth it) what type and brand to buy. Thanks guys.

[woodz428]

Spacers increase the plenum volume and on a mild engine may or may not have an effect. I'd say not.

[ January 01, 2003: Message edited by: woodz428 ]</p>

[48fordnut]

on the dyno we have found the spacer to be worth any where from 5 to 9 hp it all depends on your combo

[Ohio-Dan]

An open type spacer will normally help the top end. A 4 hole type the bottom. A spacer can help with mix matched parts. A carb that is too small mounted on a low intake will build volosity high enough to bounce the fuel off the plentum floor causing fuel seperation. An open spacer will help. A carb that is too big has a reduced signal. A 4-holl type tends to help in this case. Almost always, a stock low type intake will like the added height of a spacer. As stated above, try one and see. They're cheap. You may not gain anything, and in fact may loose a little. Then again, it might be what the dotor ordered. While testing spacers, remember that jetting changes will be needed to optimise them. Dan

[ronb]

to add what has been said here! it depends on where you want the added power? anytime you add runner lenght you increase low end torque! Example&gt; using a dual plane intake with a four hole spacer will help with low end power! you will most likely not see any improvement with an open spacer unless using a single plane intake