if this is for a JZA70, I have a MA70 test pipe I'll sell you that will move teh exhaust back an inch from where it will sit from your stock cat......
(The JZA70 cat is an inch longer then the MA70 cat)
Holy crap with the people not getting it.
The Profec B spec 2 has a port on the back of the unit itself for its internal boost gauge. This is what he wants to hook up.
MO87NA: You don't need to hook it up to the one running to the fuel pressure regulator. You can tee into ANY vacuum line...
That's not entirely correct.
While there is an increase in flow within the engine due to the positive manifold pressure pushing a little more air into the cylinders, the majority of the power increase comes from the DENSER air charge. It's all about the number of oxygen molecules per volume of...
I ran stock injectors on stock twins with crower small core 272 cams. Worked fine. The duty cycle got into the 90s when you pushed up to 7500rpm, but it still flowed.
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