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    mercruiser 5.0 camshaft help????

    i need help...lol and not mental although this cam stuff is driving me crazy ok this cam appears to b a solid roller and came out of my 1997 gw invader which HAD a 305 mercruiser in it...now i have a350 and was going to use same cam but the grind numbers or part number thats on it doesnt give me...
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    oil preesure at gauge vs. oil pressure in block?

    ok guys its been awhile since my last visit here with ?`s,but i have returned.. just got through with new floor and rebuilding motor in my 20` invader......but i have problem....my oil pressure gauge on dash shows 20-25psi at a 600 rpm idle(5.7l sbc)but im not getting any oil to the top end . i...
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    what makes a chevy 350 a MARINE engine?

    whats the difference in the short block as far as crank rod piston etc. in a marine short block vs. a non marine? im using the top end off the orig. merc. 305 and im building a fairly stock bottom end to put in my boat and am wondering now if what i have will hold up...i have a 350 block, stock...
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    1 piece ot 2 piece rear main????

    my boat currently has a 1 piece rear main but im having trouble finding another 1 piece rear main block.....can use two piece?....i know the cranks are different but what im really need ing to know is what is all behind the motor i have not pulled engine yet,,, is it a typical flywheel back...
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    vortech5.7? do`s,dont`s need`s and dont need`s

    ok i currently have a sbc 305 in my boat and was having problems with its performance....well over the past week with alot of help from iboats i got this thing running the best it ever has i turned 54mph by gps and was turning 4500 rpm give or take(going by the dash) u know the old saying"they...
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    i gues my boat is a one of a kind

    from what i have gathered here at iboats and the web .....invader went out of business in the mid to late 90`s ...i currently own a 96 gw invader bravo 200 es and cant find even a picture of on on the net or even someone that owns one.....its a beautiful rig to me and is in great shape thanks to...
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    i was told to post here

    20ft skiboat 305 chevy in alpha one out. 21 p prop goin by instrument panel rpm at WOP is 3800-4000 tops and speed is 40-42.. just adjust throttle cable it was out of adjustment a little now im getting all i can ........seems like its easier to plain out then to gain speed after plain???? is it...
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    choosing a cam for a boat?????

    i know in vehicles what total lift ,lobe seperation lobe angle, and duration will do in vehicles and what i need more or less of.....? is when chioosing a cam for a boat is weight still a factor? rpm range should be from idle to wot?\ i would imagine...but mostly how to determine what total lift...
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    could my prop be too big?

    is there any possible way my prop is too big? its a 21 p on a alpha one motor is a 305 inboard...it plains out well but seems like it should have more (in lack of words) pep? top speed is sround 40-43....rpm is 3800-4000...is this good? or can i get more out of it?
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    how fast should my boat go???????

    someone told me today that my hull cant exceed a certain speed is this true and how do i find out what that speed is?
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    possible boat issue? or may be ok?

    at WOT i can only reach about 3800 rpm sometimes 4000 its a 305 inboard w/alpha one outdrive....whats the highest rpm i can turn my alpha one safely and is there a prop calculator and if i change my prop will that help me gain mph? its a 21p prop now
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    Someone please help....

    this is my first post. so if its in the wrong area im sorry i`ve been reading these forums for a while now and have learned ALOT!! first...i have a 1996 gw invader bravo es 20ft skiboat...any info in this boat would b great too.. it has a 305 inboard and a alpha one outdrive...i just got...
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