If you lower compression ratio will it affect smogging you car?

aka
im dropping the compression ratio via head gasket for supercharging, ems...
etc bla bla bla..

so i want to know if i throw back in the stock ecu and injectors will I have smog issues??

 

anyone

 

bueler

 

So long as you run a piggy back engine management system you can smog with lowered compression. If you run a stand alone then you're up the creek unless you bribe the guy smogging you...