For 500 hp the 144 was not the blower I had in mind.
It can make 500hp but you have to step on it pretty hard.
A larger blower works better for that power level, on pump gas.
(less heating of the air charge)
The 142-144 blowers really shine in the 430 to 480hp power level.
Water/methanol injection would allow you to push it to 500hp on pump gas.
I had the 177 blower in mind.