The valves are set into the block at a slight angle facing towards the cylinder (similar to a Hudson 6)
I will have to have the cam checked to get all its specs, thus far I am unable to find all the info on it.
I think I'm going to have some fun with finding springs they are kinda short and fat but I haven't checked the out to see if a common spring will interchange. The engine uses 3/8 valves right now, I plan on going to a good stainless would it be wise to go with an 11/32 valve stem or should I keep the 3/8?
Were you running ford V8s at the power numbers you listed and how streetable was the 350+ street engine and did you run into any durability issues?