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I have a 460 cylinder with bridge ports and what was on my hybrid and im porting another 460 cylinder to try both on a regular 460 crankcase. The 460 cylinder im workin on right now is blowing 266psi!!:surprised3:
Someone cut the squish and not raise the exhaust?

How does one get to 266?

I've heard 220 is the max u want on a saw that size.

Edit:I see above.
 
Ok I got my squish problem figured out! Mike suggested I sand the squish band with an old piston. Well Glock37 had one so I stopped over and picked it up. I started with 80 grit and finished with 120 because it was the highest grit I had at home. After a couple paper changes I took a measurement and was between .016 & .017. So I ran a couple more 80 grit paper changes then finished with the 120. Here's how it looked.
18266db8fdb0729e31df77f11e1c9511.jpg

029ce183a0d8c6b6609c31a85ef41445.jpg
98cd44725173c1cbf498335fa0eed19e.jpg
aa1d6601b893ed09d691d6e3231ecee0.jpg
and here's what I ended up with!
904f5373dc6de5d08c351239d49fa4a0.jpg
 

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