Richard is doing more boosted LS testing and this time it’s the M90 Supercharger again with more mods to the 4.8 in an effort to see just how much power this little blower can support. Check out the video and let us know what you think about this little combo. I have to say, I’m pretty impressed and it makes me want to go out to the wrecking yard to find one and then swap it into something. I mean why not right? Check it out.

Video Description:

WHAT SIZE HEADER SHOULD I RUN ON MY BOOSTED LS? DO 799 HEADS MAKE MORE POWER THAN 706 HEADS? SHOULD I RUN THE BTR HOT ROD CAM INSTEAD OF THE TRUCK NORRIS CAM? JUNKYARD SUPERCHARGED LS HEADER TEST-1 3/4 VS 1 7/8 INCH. DO BIGGER HEADERS MAKE MORE POWER? DO MUFFLERS HURT POWER? WILL A SUPERCHARGED LS RESPOND TO A BIGGER CAM? SHOULD I REPLACE THE FACTORY 706 HEADS ON MY 4.8L WITH 799 HEADS. DOES MORE FLOW EQUAL MORE POWER? CHECK OUT THIS VIDEO WHERE I COMPARED 1 3/4 VS 1 7/8-INCH LONG-TUBE HEADERS ON THE M90 SUPERCHARGED 4.8L. I ALSO COMPARED THE BTR TRUCK NORRIS TO THE BIGGER HOT ROAD CAM. I ONCE AGAIN ANSWERED THE QUESTION ABOUT WHETHER THE 799 HEADS MAKE MORE POWER THAN 706 HEADS. BONUS TEST-RADIUSED AIR ENTRY.