MAF Sensor Boot-in to card type?
I know I would need the weld on adapter for the intake tube. as well as harness adapter or get a new connector for the MAF.
My concern is actually about the the compatibility of the Boot-in MAF to the card style. from LS2-LS3/7 styles. Does the ECM read both cards the same?
They are also more sensitive on the low flow end to turbulence. If you build a 4" tube, I recommend you also add a honeycomb insert in front of the sensor to smooth things out.
Do a search on card MAF's & you will find a lot of reading.

