A set of vortec heads and a cam swap could really help out your economy. Pretty sure marine engines in 92 used swirl port truck heads. They're not that great for economy, and IMO have way to low of a powerband to them for marine use. Just be carefull, Alpha outdrives do NOT take kindly to alot of horsepower in heavier boats. A drive shower is a good investment to keep it cool, and run the Mercury synthetic drive lube in it.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR
2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD 
AND THE PINK JEEP!!!! R.I.P.
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