I get about 42 gph at sea level with the low boost pump on
as I get higher full throttle and 2700 rpm the psi drops significantly even at lower altitudes and to maintain the CHT's below 400 high boost pump produces an increase in flow up to about 18,000 feet where I have to go to lean and continue climbing (albeit at about 500 fpm)
this keeps temps and tits in range
IV-P 400 hrs