I believe the worlds fastest Vee bottom had SM Gen III's on it when it broke 170mph.

Yes so did the drambue boat the first one

I might have too do a DYNO test between the CMI and Stainless Marine, I spoke to Bruce @ Express racing engines and he said he would do it

There you go , the proof is in the putin . I personally would be very interested in seeing the numbers .

Stainless are nice, I have them on my boat, but a tube header will have a nicer crisper sound to them. I also had the KE cast header they sounded great also, the problem with them is if you suck up mud it get trapped in between the water passage cavity and the exhaust port on the top upper bend, which causes them to melt thru!

Call tommy @ chief, I believe he has done the testing and the stainless marine made more power. A lot of the race boats run stainless marine and that says a lot because they care about making power, and reliability, not how sparkly it is when you open the hatches...

Stellings still has some stuff on their shelves that they will sell you, but they may not have exactly what you need. Let me know if you want to check with them and I'll put you in touch with the right person.

I think the reason why CMI came out with the Big E tops is they were losing business on the reliability side.

SM are a quality product but are butt fugly. I actually find them uglier than the cast iron manifolds. They are a great and reliable product though.

If money is no object for me I'd go CMI E tops. reliable and good looking. Because I'm on a budget I'd end up with Stainless Marine

[QUOTE=baja27;3854400]Stainless are nice, I have them on my boat, but a tube header will have a nicer crisper sound to them. QUOTE]


I think people always leave that out when doing the pro/con thing.

A true header boat always turns my head. The raspy sound can not be duplicated by a manifold

Here's some info regarding power:

http://www.offshoreonly.com/forums/2098777-post22.html

http://www.offshoreonly.com/forums/2095269-post12.html