its not the boost that killed it.its the idiot not believing my timing light-too much timing.this was #4 cyl on my stroker l28et.i call it the ghetto stroker.made with free or pick&pull parts.i am kind of partial to oem pistons.they need less cylinder wall clearance than aftermarket forged pistons.problem was upon tear down i found a piston pin clip missing on #2 and the cylinder was scored.block is getting a sleeve in it.so its getting all new pin clips,new piston,new rings.oem nissan pistons are graded-my set is a #1 grade.new 1 is coated