what would i need to go from a alpha to bravo 1 its on a baja hot shot i swapped out the 4.3 to a 5.7 the alpha had a 1.8 ratio i figure i would be better off buying a used bravo 1.5 than changing the gears in my alpha

Find a used alpha and bolt it on. You have to change the transom assemblies and setup the engine for a bravo style impeller pump. Lots of time and money involved unless you plan on going with big block power later on its not worth it, in my opinion.

Stay with an Alfalfa.

350 keep the alpha. Used alphas are everywhere.

Yup. And new Aftermarket complete drives,uppers, and lowers are relatively cheap.

Yup, maybe they will come out with a Bravo upper soon.

http://www.sterndrive.cc/Mercruiser-Sterndrive.html

Thanks for the help I will look for an alpha with a 1.5 ratio

Also, the gear change is done in the upper so that is all you need if you find one. The SEI one is 750$ new.