That is exactly why i free rev'd it, ignition problems tend to be more load based/show up more under load,,, one free rev is a quick way to work out probability of ignition causing it

For now ill have to build up another motor with mazda pistons, this time ill try find a set that had drilled holes for the oiling not slots, I knew those slots would cause drama but honestly this motor was a "trial and error" setup and cost me next to nothing, wanted to find out what would work for me and my power goals, now its time to do it right, pity no one seems to have stock of the A15 high comp's so ill build a 3rd forged motor when i have time!