Is there a rule of thumb on whether the tip of the fuel injector is supposed sit flush inside the manifold? I am in the process of installing some 450 dsm's but i'm not sure the spacers I'm using are sufficient...The manifold is off, so when i tighten the fuel rail i can see the tips of the injectors that now lie flush inside the manifold...is this correct? Also, the fuel rail should be tight, but not overly torqued down right?

 

ttt....i'd like to know as well for my DSM's...

 

No one huh?