[turbo87mustang]

well if u have low compression pistons, however u tune, but if u running high compression pistons, u cant turbo, u would blow the engine apart with to much pressure lol. but if u put forged pistons in n/a and turbo it, u will be fine, just tap and drill for oil supply and return lines and yes maf would work, but what does speed density have to do with it??? just kinda accurately tell ecm/pcm air measurements.