I know it's not a budget build but i think 400 HP is resonable, I'm thinking the key ingredients is 10:1 compression, .5oo"+ lift cam and 200+cfms and peak power 6500-7000rpms. which could be accomplished with decking the block and gasket size combo to get .40" quench with factory flat tops, stock rods with arp, ported and milled factory heads and solid flat tapped high lift cam which would be budget but I want a little more since I'm gonna be running it on Mosport road course track here in Canada.
The main problem I'm having is deciding is on valve size combos 1.78-1.50, 1.88-1.60 1.94-1.65 or something else and which heads to go with ported factory or 302 or magnums or rhs and I was wondering could you down size from a 2.02 in a eddy head to 1.94 or less with new valve seats I know at one time they did come with 1.94 valves.
The main problem I'm having is deciding is on valve size combos 1.78-1.50, 1.88-1.60 1.94-1.65 or something else and which heads to go with ported factory or 302 or magnums or rhs and I was wondering could you down size from a 2.02 in a eddy head to 1.94 or less with new valve seats I know at one time they did come with 1.94 valves.