| ibshane | -- 11-28-2017 @ 6:57 AM |
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**1937 Ford 78 - V8 85** I am going to be adding an 1" aluminum spacer with a vacuum port under my Stromberg 97 carburator to facilitate a PCV valve. I also plan to add a 3/8" phenolic heat shield under the spacer that extends forward under the bowl. All total this will raise my carb a minium of 1-3/8" I have a few questions regarding my plan: 1. The spacers available with vac. ports all seem to be "open" Is this OK to use on my stock dual plane intake? 2. Is raising the 97 1-3/8" going to create issues?? 3. There are several height vac. port spacers available for the 97. From 1" all the way to 4". Is there any reason to go higher than the 1" spacer?? Thanks guys!
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| Yokomo99 | -- 11-28-2017 @ 8:16 AM |
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The open plenum won't hurt anything. Theoretically it should improve peak power, as each cylinder can now draw from both barrels of the carb instead of only 1, but not by much. What you will have to be careful of is that both idle adjustment screws are balanced after setting the idle mixture. Basically you just have to make sure both idle adjustment screws are turned out the same amount. I set mine using a vacuum gauge by adjusting for the highest idle vacuum (LEAN)and then turn them out (Rich) until the vacuum drops 1 to 2 mm Hg. This usually gives me a good idle without the gassy smell usually associated with carbureted engines. Be sure to check out my YouTube pages at: https://www.youtube.com/user/MatthewBergin1 https://www.youtube.com/channel/UCJCdOfmXtM8xO9nXeQ-iSQQ
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| ibshane | -- 11-28-2017 @ 2:40 PM |
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Ok great.., thank you for your reply!!
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