it's not so much that their stuff is so bad, it's just their service blows goats, and they aren't very intent on staying in business if you ask me. Anyhow, as for 50hp, that's deffinately beyond a stretch. A really well done p&p job with a fully modified head and cam will probably net more realistically around 25 FLYWHEEL power.
But $800 is a descent deal I suppose...I'm not a big fan of Gude's stuff just because they have such terrible service and I personally find their head porting to be substandard (I work in a machine shop part time).
- Nathan