Indy heads single water crossover /single plane manifold.

512Stroker said
Well I have had 3 cars with electric fans 2 BBM and one SBC all had Spall fans and custom shrouds all had slow speed over heating issues. At highway speeds no issues. Not even the Spal Rep on the Power Tour could figure it out.
On the other side of the coin all the cars I have owned with a mechanicial fan never had issues. Im glad you have had some success, for me never again.
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Mine wasn't luck....it's called having a proper overall system on a car with the quality of parts needed for the job.......to be honest I really can't think of many issues at all that I have encountered so i'm either the luckiest builder out there or just spend what's necessary to have a trouble free hot rod.