So, this stutter is actually a smooth running engine except it's like you don't have much power until the RPMs build up?
This makes me think of a fuel delivery problem....thinking injectors or very possibly dirty fuel filter.
1985 300SD - 'Grace' (198K mi.)
2010 Honda Fit Sport
2013 Honda Accord Sport
1996 Lexus LS400 (Retired)
1995 Ford Contour SE (Retired)
1976 Porsche 914 (Sold)
1972 Datsun 240Z (RIP)