i have a 78 bronco that i blew the rearend out in. And after dropping in a 4.56 gear and a detroit locker the timing chain jumped.broke off like 3 or 4 teeth. being that the engine has over 200,000 miles. I am thinking of just rebuilding the whole thing.

I would like to push about 250 horses but i want tons of torque. as much as possible anyway but still being able to do 75 mph on the freeway. it has the 351m in it, now what i was needing help with should i rebuild the 351 or should i turn it into a 400?

I want to do alot of off-roading but still be able to drive it to and from work. can you guys help me out?

Also if you know any place i can get proformance parts that would help too.

Thanks