I am interested in repowering my 33 Outlaw with either new 502's or 496HO but I would like to know some honest GPS speeds? I am shooting for the upper 60's at least.

I repowered mine from 365 mags 65 mph to stock 502 415 hp crate engines 72mph to a bunsh of head work, cams, and about $20,000 in parts I am running 80 mph

I have a '99 with HP500s. See 73-76 on GPS based on load and 24P B1s. Changing to 26 b1s in the spring and hope to be in the high 70s.

I have 496HOs in my boat. Best ever is 78.3 gps. My day to day guarantee no matter what the conditions is 75+ easy. Unless a 33 is somehow faster than a 29, I would expect your numbers to be slightly lower than mine.

Also -
I'm running 27 3 blades from Bronson Hill

2002 496 ho's 77 on a cool day 74 in the summer
2001 502's 68 gps
same 2001 with 500 efi's 2'' imco shorties and 30'' bravo labs 81
on texas lakes at about 500 feet

We boat with a friend of ours who owns a 1999 33' Outlaw with 500 EFI's and IMCO extension boxes. He turns labbed 30 pitch Bravos. He sees 81 on the GPS.

Derek, Are you sure about GPS? I believe you mean GS(Gear speed).

i have 2 friends with 99' 33 o/l's
one with 502 mpi's, 70 mph on gps, 25p
mirage +, 67 mph w/24p bravo 1's
the other: f-2 prepped (light layup)
carbed hp500's, stellings extension boxes
lab finished 30p bravo 1's , 79-83 mph gps,
depending on conditions, fuel, etc.

Ha, that's funny Gary! You have to be close to 80 or better GPS too, right?! I know that GS is faster (just barely) than another mutual friend of ours in his 42' Fountain with 500 EFI's. He says he consistenly gets 79-80 mph GPS.