Any guesses as to my top end in a 18 thunderstream with 200 pro xs, 28 chopper a nose cone and hydraulic jack combined with a driver who doesnt mind pushing the parameters of sanity?

Thats a great idea...had no idea that was an option! Thanks!

PPS The 200 Pro XS comes in about 7 pounds heavier than the plain optimax at about 505 dry. A few other forums really had me worried about modern engine weight with regards to high speed handling issues. Confirm or deny?

Thanks so much for the info guys! I would love to hear from RussF on the subject! Why is it that I wouldn't need a sports master gear case? PS This seems like a really open minded forum! Ive chatted in rooms with guys who wont even recognize thunder stream as part of the Hydrostream family. I think ...

Hello. After years of working a side job I have scrimped away enough cash to buy a new Thunderstream and engine. My questions to those who can help me out are: I understand these hulls need light weight engines, not really interested in rebuilding an old one....which leaves me with some sort of Opti...