What did u end up making stelth

 

I just added meth injection and the Procharger bell mouth filter ,

showed a bit more boost and went to 700 hp at the wheels.

 

Where Are you getting vacuum for blow of valve

 

Inlet Manifold

 

A car I put to gether 370 ci 4L80 with a reg F1 7.65" and 3.70"blower pully made 21-22lbs and right around 825rwhp. Made one pull that is made 844rwhp, but started to have a little knock etc... Pulled more timing etc... Here is a few video's from that day of 3-4 pulls showed how consistent it was etc...