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454 first build. Suggestions

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Old 02-16-2015, 08:13 PM
  #61
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91+ octane
10:1
850-950 Holley (does not need aftermarket Holley type)
Dart Oval Intake (Vic Jr oval fine too)
265-290cc AFR's (depends on pocket $$$)
230/236 .600 lift 112LSA (could push this a little further if he wants) 4-5 degrees advanced
Lightning Headers (or Stainless marines) - either with water dumps far back towards tails
V6 module for Tbolt IV or External Coil HEI (the EFI one but without using EFI controls)
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Old 02-16-2015, 08:17 PM
  #62
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bfsc,s .i don,t really pay much attention to them now that we have a/f ratio measurements at our disposal.before we had a/f ratio on the dyno we paid more attention to egt,s and bfsc,s.on another note,it is common practice to prop a boat above max hp rpm and the boat will almost always go faster that way.
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Old 02-24-2015, 08:15 PM
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lol I like to hear all the info.
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Old 02-24-2015, 08:21 PM
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ok guys..ive changed my mind on my motor.ive have decided to go with a 540CI.for the budget thing.....go big I guess lol.I have a guy building my motor.he builds drag cars but he has done boats also.going with a merlin block and im not sure what heads yet.i have to find out what he has in mind.he is into using good parts.block,crank,rods and pistons.4,800 bucks so far.
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Old 02-24-2015, 08:25 PM
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ive looked at a lot of exhausts. a lot of them are rated for HP.whats the best for like 500-700 HP?
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