TexasTrue, Ive been building a carburated 4,0 for the last few months.
I miss the days when all I needed was 50lb toolbox and I was unstoppable and could deal with just about any problem at least temporarily until I could fix it permanantly. A good carburated engine will live and die 2,3, or 4 times when a FI, computer controlled engine usually lives and dies once for economic reasons. I have a sbc that has travelled almost 1 million miles on 3 rebuilds.
The only issue I ran into was when you use a 258 intake there are some fitting issues with the 4.0 exhaust(which you will have to use) nothing terrible and easy to work through.
If you use the 99+ 4.0 intake like 4.7 stroker and I are using there are no fitting issues but you will have to modify the intake and make the carb adaptor(details are in 4.7stroker's gallery). I made an adaptor from an aluminum adaptor plate that I found under a mc2100 in a junkyard. It looks like a carb adaptor but it was only there to provide a nipple for a pcv hose or perhaps a brake booster to connect. IIRC I found it in a late 70s f100, 302, it was obviously a factory retrofit so they could use up their existing stock of intakes and carbs so they may be difficult to find.
I spent $30 to get a machine shop to mill it to fit my intake and I drilled and countersunk my carb and intake bolts myself. I used 4.7strokers design(and so did the machine shop) He should have copywrited it
. All kiddin aside, Many thanks to 4.7 stroker
Im still not convinced which intake I will be using, the 258,the 99+ or a Clifford. I will try all of them and have bought, built and dry fitted all of them and have them ready to go. I have to also consider that I am making mine a dual fuel setup capable of running on gasoline or propane(check into it).
So far I have only dry fitted everything and have now dissasembled it all to build the 4.0 into a stroker.