Underdrive Pulley

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Apr 20, 2008 | 12:06 AM

HyphyDrivah

Thread Starter

Joined: May 2007

Posts: 16

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Underdrive Pulley

Are they worth the extra cash?

I have a 289, stock radiator, Edelbrock water pump, no electric fan. Would i have problems with cooling?

Apr 20, 2008 | 12:26 AM

67mustang302

6th Gear Member

Joined: Apr 2007

Posts: 10,468

From: California

RE: Underdrive Pulley

I run a high volume water pump and have no cooling problems. You'll see more power gains on an engine that's already built up, but you may notice a difference. Might help on mileage too.

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