Originally Posted by snapmorgan

Probably going to write a book here, so please bear with me.

I just picked up a 28' Advantage Sport Cat yesterday on the cheap. It currently has a low hour 502 with iron heads and a 177 single carb blower setup. The previous owner hasn't found the build sheet for me yet, but he claims that it has a good crank and rods in it and has JE flat top pistons. He has never quite got this combo running very well and I would say that it is because of the puny blower setup and single carb. Has a hydraulic roller of unknown size and an IMCO drive with a 1.36 gear ratio std length lower. Engine has Stainless Marine Gen III manifolds on it and the tails are dry. Well, almost dry. Water enters about 1 1/2" from the tip. The pipes are custom built thru-hull, so I really don't want to swap them out for headers and have new tails made if I don't have to.

I will be pulling the intake and heads in the next couple days to see what I can see.

Here is what I have on the shelf gathering dust
Brodix 325cc heads with chambers cut to 114cc
B&M 420 blower with 2 Holleys. 750's I think and several pulleys
A Doug Herbert blower cam BH2, lifters and springs
CBH2-114LC BBC Blower Cam 242/242 [email protected], 642/642, 114LC,
I have a complete spare XR drive, std length, 1.5 gear ratio
I have a -1" IMCO lower 1.5 gear ratio

I have no problem with buying another camshaft if this one is less than ideal and would like some recommendations on what to get.
My goal is around 800-850hp
I would love to put fuel injection on it if anyone has a couple throttle bodies and an injector plate that they would like to part ways with. Tails already O2 sensors in them as well.

Looking for feedback. Thanks, Joe

Originally Posted by mike tkach

i don,t,i left the door open for you,lol.if you think my post is drama just wait.

Originally Posted by snapmorgan

A Doug Herbert blower cam BH2, lifters and springs
CBH2-114LC BBC Blower Cam 242/242 [email protected], 642/642, 114LC,

Originally Posted by 14 apache

How many MPH does his boat go over 100? Just wondering

Originally Posted by mike tkach

imo,the 750 carbs are too small,mild thunder runs a 420 blower and he went from 850 to 1050 carbs if i remember correctly.pm him as i am sure he can give you some insight .

Originally Posted by donzi matt

That cam made 893 horsepower on the dyno in my 8:1 572's with Dart 345 heads and 1071 intercooled blowers at 9.5 psi.

Originally Posted by Bajajay98

1050's are way to much carb on that motor