Quote:
Originally Posted by Gmc.guy
^^ what he said. Make sure you are tuned for best running(carb too) and see if anything changes. It sounds like you need more permanent reliable power If you looked into trans swap and a nitrous setup, you probably have a budget that is fairly decent and you have a specific reason/use to upgrade, I would look into options for a bit more torque, my advice would be to upgrade the 350 until it's "good enough" or upgrade to a stock big block.
Then you can gun it in 3rd and do 52 mph
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18 ft aluminum Boat & outboard weighs around 1400 lbs. trailer is pretty heavy duty, had a 2nd axle added so I'd have 4 tires on the ground, couldn't guess the weight.
I think your'e right on the engine upgrade. Considering stroking to 383 for a little more torque, maybe an upgraded intake manifold. Don't have the specs on the cam (290 horse basic Goodwrench 350) but it's seems ideal for my application, pulls strong up to 3500 rpm or so. I've been driving it stock for 32 years now so I don't have any engine upgrade experience.