Originally Posted by STRAIGHTPRIORITY (Post 3361239)

i do have switchable mufflers.... do u think i should not use them? i was more concerned with running in rough water and commin on and off the throttles...
risers are standard gil tails with standard slope.

Originally Posted by smokin' gun (Post 3359021)

ok guys because of my recent motor upgrade i have to go to dry exhaust because of the camshafts in the engines .my motors are 511ci tall decks 9.5 comp. w merlin heads reworked by champion race heads. brodix hv intakes .950 holleys .and comp cams solid rollers 680 lift w a 106 lobe sep .the cam lobe sep is the bad .i have all new gil manifolds and dry risers .my question is can i plug the fitting on the pipe and drill 3 holes in the end to let the water dump as ive seen on others .im assuming the boat may be a little quieter and i wont have to drill the holes in my hull for the dumps .im just guessing at this but hoping it might work and still not pull water up the pipe as they are 42 '' long being a trs app .or maybe someone has a better idea or has been here before .ive added some pics of the pipes as they are now length and the 2 small holes currently in them

Originally Posted by STRAIGHTPRIORITY (Post 3359249)

now im concerned.. i have regular bravo gills 112+2 lsa
duration 292 int/ 298 exhaust.

do i need dry? i really dont know alot about cam size

Originally Posted by endeavour32 (Post 3361255)

In case you didn't know, Merc used the Gil exhuast on the HP 500. It used the standard tails and a lot of those engines were destroyed because of reversion. I don't know what the cam specs were on that engine but I don't think is was very radical. If it were me I would extend them back just to be safe!