MILD THUNDER

iTrader: (3)

A small hole at the end of the tailpipe will get it done. Doesn't take much, 3/16 or 1/4 iinch hole will let enough water thru to keep mufflers cool and from turning blue, but not flooding with water as to revert.

chancer540

Thanks for the info. Just worried about the cam (reversion) that was just installed in a 548 that was just built and dynoed..
Dur. @ .050 intake 246.1 exhaust 253.9
lift intake .681 exhaust .682
valve overlap .050 22.1
lobe seperation 114
hp tq
3500 416.9 621.3
3600 419.9 623.4
3700 436.4 625.1
3800 452.3 628.6
3900 468.2 630.2
4000 487.7 640.4
4100 510.5 652.7
4200 528 660.8
4300 547.6 668.1
4400 562.6 672.2
4500 578.7 675.6
4600 595.7 678.8
4700 606.6 678.5
4800 617.9 677.2
4900 632.1 676.7
5000 642.6 674.3
5100 649.5 669.5
5200 655.6 663
5300 662 655.9
5400 669 650
5500 675.3 644.3
5600 679.1 639.9
5700 685.2 634.5
5800 679 7 625.8
5900 671.5 618.1
6000 667.9 610.8

God that took forever. Dont no how to upload picts. lol
548 10:1, Daytona CDI ignition, 1050 Dominator
Going with CMI etops for exhaust

getrdunn

iTrader: (7)

good job. I'm assuming dyno'd with headers. I'd say it's a crap shoot. You'll be dry to the end of the tails with stops so all you can do is try and see. I've used cams with move overlap and less lsa and never had a problem. With that said I'd at least try it out first but keep and eye on exh ports. Looks like a custom grind. I'm just surprised this day and age the professionals spec'ing out marine builds out aren't taking reversion into consideration.

Baja Rooster

iTrader: (1)

Gordon Demarco just put up a couple of Marine turbo kits on power boat swap shop.