[Dwight]

I have a 354 (same as 347, just .070" more stroke) and it make 480 - 500 flywheel hp. 402 rear wheel and 422 tq.
First question is how much hp do you want to make?


I have a 90 mm MA cal for 24 lb injectors, 36 lb injectors, Keith Craft Brodix heads and a Keith Craft / Comp cam.
I have an SCT chip which make the 36 lb injectors work with the 24 lb mass air meter. Well, the chip makes it all work together.

First you decide how much hp (money) you want then you pick the parts that will work together to give you that hp.

For 450- 500 hp you need 80 mm MA, 80 mm intake, 185 -205 heads and a cam to match.
1 5/8 or 1 3/4 exhaust headers. Don't forget the side pipes, their are the largest killer of hp in a Cobra.

Best money I spend was with Keith Craft on the heads and cam. I gained 80 hp.

You need a fuel pump to match the hp. Fuel line size, fuel rail, air cleaner, well you get the idea. Everything has to support you hp goal. A undersized fitting in the fuel line can choke you power. Runs great till 5300 rpm and then dies.
The wrong air cleaner can cost you 97 hp at top rpms.

I use a stock Ford distributor and ECU. NO MSD.

I would suggest you research the parts you need for the hp you want. The more hp, the more importance the parts become.
Have fun and enjoy the hp.

Dwight