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  #31 (permalink)  
Old 07-13-2010, 11:27 AM
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Your tri-pwer setup should bolt right up. I did that to a 69 400 from an earlier year 389 and it worked pretty good till I got fed up with the constant adjustments to keep it running good as I only re-built the center carb. Went back to a 650cfm holley and actually got better performance and drivability.

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  #32 (permalink)  
Old 07-13-2010, 02:52 PM
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hot 389

i will check that i do have the ones that go to the front that look to be a little close thanks for all your help
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Old 07-13-2010, 05:15 PM
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make sure the upper radiator hose doesnt go upwards before entering the intake. I had a similar problem> I had an air pocket and the water wasnt flowing enough. Good luck anyway.
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Old 05-01-2013, 02:10 PM
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I had my 389 rebuilt and it overheated and vapor locked after it warmed up. I could only drive it about 1/2 miles and it would vapor lock, i would let it cool down and it would start again. What I found out was the intake gaskets cross flow under the carb were wide open, wrong intake gaskets. I put the correct ones in that had the middle port blocked off (I have an electric choke but if you have a thermo choke you will need to install the ones with a very small hole) and the vapor lock up stopped. Bottom line when I checked the intake mantifold under the carb was hotter than the exhaust mantifold. You might want to look at that for the vapor locking.
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