8.1L swap questions

[edgooch]

I am preparing to swap an 8.1L engine and 4L85e transmission into a 1972 3/4T 4WD Custom Camper truck (picture below). I have seen some info on this forum that helps a lot, but still have several questions.

1 what are the pros and cons of using the electronic throttle vs an older mechanical throttle body. I have all the parts needed to do either.

2. What motor mounts are best to use?

3. Who should I use to reprogram the ECM? I see members of this forum talk about Jim's Performance and Howell. I can't figure out which is best. Any opinions and recommendations would be welcome.

4. Did you have to change the front cross member to clear the 8.1 oil pan? Where did you get the cross member?

5. What about cooling? I have the radiator out of the donor vehicle ( 2003 suburban). Do I need it. The 72 has a pretty healthy radiator already.

6. The truck has a factory in-dash tach that works great. Can I make it work with the new engine?

7. What exhaust manifolds work best?

I am sure there will be many more questions as I work through this build. Any help and ideas would be appreciated.