Well it's better than the m112 because the m112 is not any more efficient than the GenV. You simply have the option of going to a higher ceiling in terms of MAX hp potential. There's almost ZERO information on someones m90 to m112 gains. You might actually lose horsepower doing that swap.
Whipple... how many people have a whipple setup? How many of those people showed gains from the m90 to the whipple with nothing else done?
How many people have Kenne Belles?
How many people have Centri blowers?
Where's all the info?
I put the TVS swap together in my driveway. Drove it to the dyno untuned and picked up 50whp.