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  1. Lt1z350

    4.3lx intake manifold question

    I found some posts on this but no one says I gained x from the swap. Some are 2bb to 4bb so those don’t work. I got a 94 4.3lx non vortec heads. I see edelbrock has an intake and they claim 18 hp vrs the stock merc cast iron. I have not taken off the carb but stock looks to be open plenum...
  2. Lt1z350

    94 chaparral 1930 ss with 4.3 prop help

    So boat is 19.3 long 2500 lbs by the reading I have done. 4.3 190 hp from what I can come up with as has 4bbl on it. It’s that lx thundervolt. Just bought it and had a 19 pitch cheap Solaris prop 13.5 I believe I can get part number off it. Previous owner hit something and bent it up pretty...
  3. Lt1z350

    94 Cobia 5.7 Chevy/Yamaha setup

    Looking at this 94 Cobia 198e Monte Carlo which is super clean. I’m trying to find out what hp motor this might be and if 4 barrel setup. I did read the Yamaha out drive is extremely hard to find Parts but stole Volvo setup so it’s very strong and a good unit. But rather get some answers here...
  4. Lt1z350

    1989 xr4 150 that sat 3 years issues.

    So picked up a Norris craft 1750 with an xr4 on it and was told it ran fine last time in the water. This was late in 2019 I was told and been sitting since. The previous owner tried to do the carbs on it so first thing I rebuilt all 3 of them as one the float wasn’t setup right and it was...
  5. Lt1z350

    Prop size stamp?

    Bought a boat and it’s got a merc xr4 on it which told is a great motor for its age so happy with that. Owner told me on this Norris craft 1750 it did around 55/60 mph and comes out of the hole hard enough it scared his wife to death lol. I’m curious if this is a good prop still cold here and...
  6. Lt1z350

    89 Norris craft 1750 steering fix??

    New here picked up a super clean basement kept 35th anniversary Norris craft 1750xlvee with a merc xr4 on it and needs a little maintenance I can’t seem to figure out. Did water pump and carbs. Ran good but not great so threw new plugs and it and now runs like a champ. Live well is missing some...
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