Time for change. Going fuel injected

[RiverRat70]

Last time I was on here I was changing from a 3 speed to a np a833 4 speed overdrive. Well now im going to start my next big change. Im going this weekend to pull a 5.3 from a 2000 Silverado and start workin on swaping it in my 70 c10 lwb. Im really hoping everything will work out like im planning because I want to hook my 4 speed overdrive to the new motor.

My first question though is does the guy on lt1swap.com do good work on the pcm flashing? He seems reasonable and has a lot of info. Every time I do a search for info on this kind of swap his website is mentioned.
Thanks for all of your info in advance