I built the motor. Best Machine is who suggested to fill the block instead of sleeving it. As for the cooler, Derale said it would not raise my coolant temp if it was mounted tight to radiator. 5* hotter is not bad i dont think. Most of the new stuff now runs 210-215*. Not gonna sweat it just yet. While the dist was out i recurved again. 1 stiffest and a blue spring. A large bushing from Don@FBO with only 6* advance. Set timing at 29* and all in at 34*. I know its not right, buts runs stronger and sounds way happier.