having a little issue...

ok so have all my parts and just waiting on the block to get back!

but there were some worries about the valve seats so i pulled the exhayst valves out and there were no burnt ones. so no issues there!

seemed like excessive carbon in the exhaust port tho so im going to back it down to a 67 from a 68. or should i wait till after the engine is runnnig becasue of degreed cam (increase cyl pressure) and new comp, from 9.2 to 9.8.

and why are pv needed? i thought thats what the jets were for??

thx