OMG, what pulleys on the Blower and crank? Looks pretty large, that still a 6-rib belt, no belt slip looks like.

 

It is indeed 6 rib, with zero belt slip. It is a well designed setup. The lower crank pulley is stock, and the blower pulley is 4" which yields 9psi with 10 psi at redline.
The Whipple blowers with our RPM Motorsports custom grind cams, are an awesome combo!

 

700+RWHP on just the Boost-A-pump!?!?

 

Did you have a hand in that one, Chris?

 

and to think it's still climbing....will there be more boost going into this build soon?

 

Yes, bigger injectors come with the kit, and the awesome MSD Boost A Pump was all that was needed for fueling.
Of course Brian!

This build, and the many others we have done with the Whipple, was left with the 4" pulley. Delivered to the customer a long time ago.
But, we are putting together something cool on my own personal 04 CTS-V....a 427 LS7 with good pistons, 10.3:1 compression, custom cam, and the mighty 2.9L Whipple with around 12 psi. Should be an interesting combo.

 

Thought so... Keep me posted on your build. I'm guessing 730-760 to the wheels?

 

What makes the msd boost a pump better than the kenne bell unit? Most of the kenne bell units are out of go around 625whp on the stock pump, unless ur spraying out of a meth kit of course.

 

Because it splits the electrical charge in half and creates a positive ion discharge to both flux capacitors