Running a stang in mexico

[cucho]

Ill already tried to sfhit at 6000 rpms, but if i do this i shift the fourt gear nearly the 400 meters. The single plane manifold its a holley and it have a match port, Ill be thinking to change but all the single plane manifolds are the same, i can use a victor jr. cause its to much for street, and the air gap well i lived the line at 5500 rpms the air gap would be great with a automatic trany, what do you think. It doesnt feel loosing power in the engine Ill think is someting with the trany or rear end. And i just felt that it most be quiker