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Thanks to all for the good tips.

Rocky- Thanks for the offer to send the block offs!

I think I'll just cut some thin stock and lay them in there. Or maybe's Steve's idea of tin foil

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Why not just buy the $20.00 block off vally pan.

To do any other block off option , you will have to remove the intake anyways and want a new pan gasket.


The Tin foil plug is a old school idea. I did that back in 1976 It didnt last though

Maybe I didnt cram the tin foil balls in there hard enough. After a year, when I took the intake off, all of the tin foil was gone

The forces of exhuast pressures and heat were enough to remove the tin foil restriction over time.