do not bore it to a 350. you can't. the bore is too small. they run really good. they are weak in the torque numbers but they will and have surprised alot of 350's. it is not a waste of time to work on a 305. just don't expect gobs of horsepower if you want it streetable.
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04 GMC Sierra RCSS
70 CST LWB
04 HD Sportster 1200 Custom
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