Well I looked more at the truck today, found out it's a 85 not 84. It has a 5.0 liter in it (305) and I am going to be fixing it up and putting my own money in it along with my dad putting his money into it to (first and only father son project) and we are thinking about putting better breathing heads on this thing without having to modify ANYTHING, just a plain bolt on. I understand I can use 350 heads on this.
Now here is the plan. My dad thought about the 305 and how it has 135,000 miles on it and said he wants to build a nice streetable 350 for it next when the 305 goes (which we are hoping that wont happen for quite some time now). So if I get a Edelbrock carb, manifold, etc I can just switch it right over. I would like to get heads for this but not spend heaps of money on them and be able to switch them over too.
Any reccomendations (sp?) here?
I am not sure about the 350, I think it would be cheaper to just rebuild the 305 IMO but my dad paid for the truck and I am helping buy parts and being able to drive it so it's up to him really.

I appreciate any info given here.