Quote:
Originally Posted by Formulajones
I've used those in a few builds with 80 psi pumps and no issues to date. Actually I've been using 80 psi pumps in Pontiacs for decades, with rollers and flat tappets and never had any distributor gear wear issues or any other issues related to it. My bird has had an 80 psi pump in it for 25 years, I daily drive it, race it all the time.
My opinion, doing the check ball modifications, blueprinting the pump, and making sure the pickup tube is secured properly is more important than worrying about 20 psi.
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So with your roller camshaft (steel) I assume you also used a different material distributor gear? Apples and oranges comparison, but that is what you posted.
Tom V.
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"Engineers do stuff for reasons" Tom Vaught
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