Quote:
Originally Posted by tubman
Drilling the impellors may have worked for an all out race engine, but it's not a good idea for a street engine. Back in the day, we did a lot of "things the racers did" in the hopes that it would help, but most of the time they just caused more problems.
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When you run 20 minutes "balls out" ( a hit/miss term btw) and shut off. Yep.