I have both of McCarthys books and there is not word one in there about any such valve job.
All there is shown in one book is a as of that time period legal NHRA valve job for the stock class of cars.
Can you give a specific book title and page numbers?
In terms of running a boosted motor like you are, I don't think the issue of reversion is as great.
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Wernher Von Braun warned before his retirement from NASA back in 1972, that the next world war would be against the ETs!
And he was not talking about 1/8 or 1/4 mile ETs!
1) 1940s 100% silver 4 cup tea server set.
Two dry rotted 14 x 10 Micky Thompson slicks.
1) un-mailed in gift coupon from a 1972 box of corn flakes.
Two pairs of brown leather flip flops, never seen more then 2 mph.
Education is what your left with once you forget things!
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