Only Getting 4k RPM
09-04-2012, 01:55 PM
#11
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Location: Balto, Md
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By the way 365hp and the 420hp - has square port heads with Alium. Manifolds. If someone had switched motors and put the Alium. manifold on the peanut heads, your boat wouldn't run for ***
09-04-2012, 07:04 PM
#12
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Location: Tarpon Springs, FL Winter/LBI, NJ Summers
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I think your boat is right on. your in fresh water in a 311 SR1. The 25 will give you a better mid speed and less top end. 23's will give you more RPM and speed. A 4 blade (24) will give you even better mid but is hard on the drive if your jumping waves. My boat with dinged up 23's and 330hp 4400 and 62MPH But 65 in rough water. Small point -- salt water is faster then Fresh
09-04-2012, 07:05 PM
#13
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