Thanks for info...Do you think the tranny conversion is worth it? B series motors aren't comaptible with auto tranny's so I would probable have to...or are they? It would probably be cheaper to get the engine and conversion done at the same time wouldn't it?
With turbo, you will max out at about 250 whp with a SOHC stock engine, running quite rich of course to prevent detonation. Because the amount of torque you are generating (over 200 pounds) equals a V6, you will be OK with the transmission. However, because the transmission will be working extra hard, you may consider adding an transmission oil cooler or look up what Level 10 has to offer. Remeber, worlds fastest dragsters are autos.
If the above will not be satisfactory, then get a new engine. N/A build will ALWAYS cost more than turbo builds for the same result, unlike what others are suggesting.
For turbo kits, try Greddy, RevHard or F-MAX, all three makes awsome turbos for SOHC engines, Greddy is the most reliable, but has the least potential, it's only a stage I. RevHArd and F-MAX both make stage IIs, able to run about 20 psi, giving you about 300 whp (provided you build your engine). Pretty good eh? STick with the SOHC and turbo it.