Fox 418w Build Questions, Hp Guesses

Don't know that particular cams specs. Few observations though. First one is a statement/question...flat tops aren't going to reach that level compression...more like 12:1...so what brand are you going with? You're going to need some custom domed Pistons for 14-15:1cr. Eagle assemblies need a lot of machine work to get them to balance out. I recommend scat instead of if you want to spend some money Callies rods and crank.

The dart shp blocks are good to around 1000hp. No need for an iron eagle. Use a big bore(4.125+") it will unshroud the valves and those blocks can go out to 4.185". So you will have room for a rebore later if needed. I would go 4.125x4.00" stroke=428"

AFR 225 heads...are these the new castings or the older ones? The newer style flow more air. Both use a special header (if memory serves the exhaust ports are raised). Make sure the springs are up for the cams profile.

I'd use a 4500 series carb or a carb style throttle body. Super Vic or a 2828 intake should be used. If going efi I highly recommend using the Holley Dominator ecu system. The fuel system-efi is going to be expensive if you haven't price it out. I would go carb. Just to save a few thousand $$.

This combo would make 7-800hp n/a and be capable of mid to high 9's. With a nitrous kit on top of that...8's are possible. This will all depend on the rest of the car.

Check out fordstrokers.com. Jim Woods is the owner. He can set you right up! He deals with the dart blocks,Callies,wiseco pistons(and other brands). Only problem is he's usually stacked with work and it usually takes a few months. Call him and he will answer any questions you may have. Has an excellent reputation.