On the 3GM I had (not sure if the 2GM is the same), there was a bleed screw on the top of the secondary fuel filter housing. Using the hand pump if I got good fuel flow there the engine would start and only occasionally need bleeding at the injectors. I agree that you should check the seal on the primary filter. I trust you know about keeping the seacock closed for the cooling water while cranking?
SV Laurie Anne
1988 Brewer 40 Pilothouse