460 OT headers vs. stock logs and snails? Need advice

« **on:** August 23, 2014, 01:16:28 PM »

We'll to start off I'm a newb to the jet boat community and the forum I just bought a 76 21' Tahiti with a 460 and it has a stock exhaust (logs and snails thru transom ) I love the look of OT headers if I were to get a set... (witch will be water injected) how do I go about tuning the carb? For the headers.. Or do I even need to? And.... How should I go about plugging the holes from the old exhaust? Without having to refiberglass and fill the holes...?.

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« **Reply #1 on:** August 23, 2014, 01:45:28 PM »

You can get trans exhaust covers online. Your gonna loose your rear interior by going headers. They flare out an cause a grip of heat. Basically anything other than logs your changing the engine skirts. If you have thru bolt logs... You have the best style log. Check your snails for size...either 3 or 3 1/2. If they have the step down with both sizes you could cut and make it 3 1/2 for a tad more flow

« **Reply #2 on:** August 23, 2014, 02:14:33 PM »

Okay I'll look into it and see what I have thanks for your help! Do you know about tuning? Or how to tell if it's running to lean or rich?

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« **Reply #3 on:** August 23, 2014, 05:00:29 PM »

What carb/jetting, intake, dizzy, plugs, compression,...bla bla ect. If it was built for a jet boat correctly thats a start. Pull a plug and have a look. Compare to a plug chart. What type of fuel pump and whats the gph on it... 80+ would be safe but I have a manual carter 42gph at 5-6lbs holley 850dp an its doing fine on my 466 BBF.

twistedmac247

460 OT headers vs. stock logs and snails? Need advice

Your Mom

Re: 460 OT headers vs. stock logs and snails? Need advice

twistedmac247

Re: 460 OT headers vs. stock logs and snails? Need advice

Your Mom

Re: 460 OT headers vs. stock logs and snails? Need advice