While very good for setting squish gap, the Cometic can "leak", it happens more often with boost. You might look at a "stopper" type gasket. You can ask Barry @ MRP - https://www.mrpltd.co.nz/product/cus...s-gasket-4age/ (read description)
You are planning on running N/A pistons? They have a flaw.... (see piston on right)
If you want to keep compression high, I'd recommend a custom piston, if you can tolerate a lower compression, the 2nd gen 4AGZE pistons, along with a thinner gasket, and machining the head can get you close to 10:1.
Bookmarks