Looking for 90lb or plus Kraft card stock, 4x6

Do you have a Fedex Office Print Ship Center near you? They will cut down reams of card stock to whatever size you need for $1 per cut. I buy the M's 110 lb white card stock and have them cut it into A2 bases and card fronts.

Edited to answer your question - both Gina K and MFT have 100 lb. kraft, PTI has 110 lb.