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#1
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if it has vortec heads( 8 5/16 intake bolts), you are supposed to prop it out to 4600-5000 rpm, if it has non vortec heads(12 3/8 bolts) 4400-4800 RPM. Check your tach to make sure its accurate. With the bravo you are loosing a little hp in the drive compared to an Alpha, but its a much beefier drive. For top end, you may want to play with a prop with a little more rake than the Mirage like a tempest, but its going to hard to beat the all around performance of a Mirage
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#2
02-16-2015, 10:29 AM
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Being an MPI engine, it should be a VORTEC based engine. Also, keep it UNDER 5000RPM's. The rev limiter in some of the MEFI controllers is rather violant to say the least once it hits 5000RPM's. The one I did the swap with was a MEFI 2 ECM, and the second it hit 5000 RPM's, it would shut off until it dropped below roughly 4600 RPM's. It was not a smooth limiter at all, bout slid out of the seat when it shut off so quick. And like spare said, the bravo leg is taking away a good bit from your top end.
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2011 SUNDANCE B20CCR SKIFF, 2011 YAMAHA 90HP 4 STROKE, 2011 KARAVAN SINGLE AXLE ALUMINUM TRAILER, LOWRANCE ELITE-7 HDI, MINN KOTA RIPTIDE TROLLING MOTOR 2000CC HYDRA-SPORT 225+HP EVINRUDE SOLD  AND THE PINK JEEP!!!! R.I.P. http://www.wellcraftv20.com/communit...ad.php?t=11664 
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