have a 84 regal the original v6 was changed out some years back was wondering are there any easy way to tell a 3.8 from a 4.1 also are there any nfo on the web on how to build n/a horsepower with these engines :Comp:
Easiest way to tell a 3.8 from a 4.1 is that the 4.1 will have a Q-jet on it. I don't know where you can find info regarding a v6 NA build.
