Why would you bore our block?

Its already thin enough as it is.

With a nice set of heads and a large NIC style cam I cant see why a tvs 1900 wouldnt work.

Now the downside: they're slightly quieter than gen V's with much less harmonics.

Which would push you towards a KB.

No intercooler makes adapting the thing that much easier.

you just need to measure a gen III from the outlet to the halfway point on the pulley.

thats your "r" length if you were talking with magnuson.