aaaaaah, the forums can indeed be usefull. 0411 swap and marine intake on a 96 c1500. I also updated to the 85mm maf to prep for whipple install and operation under MAF. Started getting the p0101 code with the 85mm MAF, mpg went way down too. Used the 85mm cal above and I'm back in business for performance, mpg and code is gone

I wonder if the 75mm cal above is a better starting point for those doing the 0411 swap alone? It is different than the 2002 express cal and I'm told the express van has a different intake hose design than the trucks. hmmmm.

Anyway, awaiting WB 02 and then will do further VE and MAF cals. Can't wait for the fine tuning.

Thanks for the MAF cal info!!!!