b16 and gsr pumps are the same gear mm how is it better i never had a problem with my lsvtec in my crx reving to 8K all the time for about a year plus i dont think you will come close to 12: on your compression with itr pistons even a b16 piston has 11:8 max but from your pm yes i like what i see BUT do it right MAKE sure you use a new or very very on the head Tq wrench ok