I am doing a 440ex for my buddy. We found that the wiseco piston that came in the kit was about .040" in the hole giving us a quench of .073" and a compression ratio of about 9.5:1. It is labeled as a 11:1 kit. We cut the deck of the cylinder down to give us 0" deck, which in turn yeilds .040 squish and a comp ratio of 10.35:1. Will cutting this .040" off cause a problem with the timing chain tensioner? Has any one else noticed the advertised comp ratios to be that far off? Let me know what you think, Thanks
