Sluggish 904 when cold or converter?

naw i put the trans in N to fill it, ive started it and idled and dosn't fill. the trans was rebuilt not that long ago and maybe has a hundred passes and 5K on it. all stock internals just clearanced, except for the VB and converter... though i think im going to either go 200R4 or do the small block guts for better holding.

Ok, sounds like the Cheetah doesn't fill on it's own. Tnx for the info