why is it that powerglides work for vdrives and prop boats but not for jets??? i just cant wrap my head around how a second gear for cruising in my tq curve would b a bad thing 

ex: peak tq at 4000rpm at 450ish
peak hp at 6000rpm at 600ish

now with a gear that turns ur motor at 4k rpm and impeller at 5k rpm that would be absorbing about 450hp at full throttle according to impeller charts, our big blocks make very flat tq curves usualy only droping 100-200 from peak to 2000rpm, so if i have 450flbs at 4000rpms and say 300lbs at 2500rpm that would be more than enough for my boat at cruising speed.. i usualy cruise at 3200 rpm because that is a nice riding speed but according the impeller chart it is only absorbing 118hp, and if 2500rpm is making 300lbs of tq then why cant i get one gear 1:1 for all out speed and the other gear overdriven just for my cuise speed at little under half throttle

What's ur pick a n/a high compression motor, a stocker with nos, a low compression blower motor or a turbo motor, must run pump gas and no fuel injection.

well i was able to get my boat out to the lake this weekend with my new to me nozzle thanks to jim brock and it worked great, i noticed a much harder pull from 3 to 5k and was able to top out at 5400rpm with just me and the gf  i had no idea it would make that much of a difference and it really got me thinking what else can i do to my pump?? the impeller looks too good to change but i have read that bowl suffers, and intake loaders can make a big difference, is there a standard loader i should start with?? i am more than willing to cut and weld to reach peak performance i just dont know where to start, i know most of you are light years ahead of me and i would appreciate any advice, also when i took my bowl apart i noticed the veins were rather rounded do u think filling them to a sharp tip would help with water flow or would that be a waste of time.

As the title says what the hell is this on my pump shaft, i'm replacing my bowl gasket and this stuff is all wrapped up init.. Its like a cross between sea grass and fishing line..