Getting the jetting right -500hp - 454
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Re: Getting the jetting right -500hp - 454
If Dennis Moore was still around , he'd probably tell you to stay with the 750's. He was always conservative. The Merc 454/420hp used a 800cfm. I don't think you'd see much of a difference with the extra 50 cfm. Like Formula said, I'd look at your plugs.
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Re: Getting the jetting right -500hp - 454
Originally Posted by cooltoys61
I thought they(500hps) came with 800s? I just bought 2 from KLAW.