I still get confused when its called Bulldog. I have an early casting (was told first run) bought from Muscle Motors all called The Block. These were the issues that needed addressing:

- cam bearing bores were on the tight side
- lifter bores were crap and needed bushings
- oil pump bolt hole should of been a blind hole but wasn't causing an oil leak through the bolt
- dipstick hole too small (btw - I now have a reamer for that if anyone needs to borrow it)
- distributor drive gear needed to have the block clearanced - the gear was hitting the block
- the galley plugs in the front were hitting the timing chain

That's all I can remember for now..........