I recently 411 pcm swapped my 98 corvette everything works and runs fine except my car is pulling timing somewhere and i cant figure out how to fix it. At Wot my car is only showing 12-20 degrees of timing when it should be 26 i have any knock,i zeroed iat ,ect,and afr base tables. It would help if you guys could take a look.
spinn.hpl
fueladj.hpt