170 psi = compression?

Scamper said

ok here goes i have looked for a decent 340 reasonable priced (no such thing) I am going to rebuild my stock 360 727 trans tc yet to bought but there is a good deal in my area for a 3500 stall and it looks like I am trading my brother for his 3:91 gears weekend runner and part time drag car is end result.
The cam is comp cams xe284h

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I ran that cam in my 451 B engine, My cylinder pressure was around 180 psi, That cam produced "ton" of low end torgue, decent mid-range, now this was in a B engine, the compression ratio was 9.73.1, i'm sure that cam will still run great with 170 psi, i'd think a true 9.8.1 should get you there in the 360, it should still run really good with a true 9.5.1 & around 160 psi, i also ran this cam in a .060" 360 with KB190s quench dome (.040"), the cranking pressure was around 195 psi, the compression was 10.3.1, it was a screamer with 4.56 gears, even at 3700 ft. & in a fully dressed 73 Swinger, with me it weighed around 3500 lbs.

Now the quench was much better with the KB190s & the iron 915 heads, It ran just fine on pump premium, so those would be my choice for pistons & that cam.