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RE: 390 horsepower rating
By Steve - 05/04/2006 9:41:03 PM; IP 65.184.122.251
To my knowledge the 390 was overrated at 335 hp and the 428 was grossly underrated.The 390 in old mags were being dynoe'd at about 275 hp.The 390 is still a great engine just needed a little tinkering to get it up to and well over 300 hp.Mine with just a few bolt on factory parts dynoe'd at 380 hp.
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Collapse <a href=../ForumFE/reply.aspx?ID=27288&Reply=27288><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor27288" onclick="return false;">390 horsepower rating</a>&nbsp;-- <font color=#0000ff>Gary, <i>05/04/2006</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=27288', contentMargin: 60, icon: $('anchor27288') }); </script>  390 horsepower rating -- Gary, 05/04/2006
Collapse <b>RE: 390 horsepower rating</b>&nbsp;-- <font color=#0000ff>Steve, <i>05/04/2006</i></font>RE: 390 horsepower rating -- Steve, 05/04/2006
 RE: steve -- grabber, 05/05/2006
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