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If you can't get it straight i will be glad to look at it for you,located in edgewater,md 30-40 minutes from you,I have a ASNU fuel injector cleaner and flow tester and have found a lot of strange...

I have two seats out of my zrc when it was a race boat have slots in them for race harness,will take some pics if still looking,dave 443-223-6876

If you are running a 502mpi and don't plan on upgrading to big hp(over600) you could rig with a std bravo and gimbal,most of the boats i have converted have picked up 3-5mph,the downside is a lot of...

I don't think anyone makes a bolt on kit for the 575,you will have to buy a heat exchanger and some brackets and modify as needed,ther is also heat exchangers that can be remotely mounted if you have...

I always use new gaskets not worth the risks,the fel-pro mls are real nice and have nice sticky surface that seal up the water ports real nice in a marine engine,We use to use the felpro loc-wire in...

I have owned
a land & sea dyno since around 1996,dual rotor i set it up for what i work on the most 500-800hp marine engines,I set it up to use water cooled exhaust and all the marine hardware so...

The 575 boat around 90 on good day,the 525 around 84 on good day.I have one of each of these boats at my marina and have run them several times,of course some other boats will be a little...

Lingefelter design that intake for merc back around 1992-1993,he use to also make a 540 kit that was a modified intake,ported,shorten runners,camshaft,and re-program ecm,he was one of the few that...

Great news,Wish you a quick recovery

Adding the intercooler will add power if you up the boost,I did some dyno testing on a 454 bm 250 blower set-up,adding the intercooler showed very little increase but allowed me to run 7lb boost...

I tried a set of them a year ago(traded someone for some parts)got the bare castings,needed bowl blending and valve job way too narrow for me,installed manley valves machined the seats,installed them...

Ted you can easily make the 550hp with the mefi1 and your injectors,but as everyone that has worked with that old intake knows,the thing is junk!for making power,I once dyno a stock 502mpi made a...

Thanks guys glad to be here on a great new site with real hp boaters,been in the hp boat business for over 20 years and have enjoyed every minute of it,really look foward to do what i can to help you...

Pretty much the same engine except 7.5 compression,compared to 8.6,same cam,crank,rods,block engines held up real well,they would wipe a cam lobe once in a while(as would all flat tappet cams back...

The merc 525sc a great motor that can go some hrs,454 low compression,low boost,I would recommend a complete overhaul and upgrade the cam to a hydraulic roller thats if the motor was run in fresh...

What exhaust system,a set of big tubes(2.25 inner pipe) makes a huge difference in hp on a big na motor,with big tubes and the right cam 850hp and 800tq .

I have a set sitting in the shop,carb holes in center of plate,Give me a call410-956-5381,443-223-6876 Dave

I have a set like new non labbed $550 Dave 410-956-5381

The rods in the 575 are manley h beam,fitted with arp 2000 bolts,they have pressed fit pins(not sure why they do it that way,i prefer bushed full floating).In used condition probably worth around...

They are finishing up on project,can't wait to see it in person and take it for a ride

A few more pics of work in progress,should be all finished next week.Pat the boat has staggered merc 525(recently freshened from innovations) imco -3 extreme drives on extension boxes,herring 5-blade...

Yep the canopys were made by aero

A few more pics,boat was former team adrenalin super v light

A special thanks to Jim and Lee from PPI interiors located in sarasota,fl(941-752-6271)for doing an awesome job of designing and building a custom interior for my donzi zrc,they are using 2 layers of...

The original canopys on the older zrc were made of polycarbonate(left over military stock bought at surplus)they would yellow over time,the new zrc have canopys made out of acrylic and are very...