SKY

The gauge I'm running is a Depo racing guage. It's supposed to be a self calibrating gauge.

The fuel pressure is measured before fuel rail which fead injectors so I'm guessing just because I have high pressure reading at gauge doesn't mean injectors aren't putting out right pressure?  Isn't the purpose of putting fuel pressure gauge on is a security blanket to make sure when/if one of the pumps fail?

Thanks for respond Plugs are a little dark what does this mean? Is it a good or bad thing?

Definitely keeping airbox. The question is do revs need unifilters? Thanks for any insight on this!!!

Doing a engine leak test should show up with bubbles coming out in the coolant tank with the pressure cap off and also check the rest of your motor for any other leaks.

When i pressure check should i drain the coolant out of the motor/sled first and how many pounds (bout 3 or 4)? And if it does bubble n the coolant tank that means blow head gasket right?