from what i found the a9l is a HO firing order and i have a flat tappet non-HO engine and im thinking about changing to a roller cam to get the right firing order. will this kit + a roller cam and lifters get me going so i can run efi?
You can't just bolt in Ford rollers afaik. You have to run a conversion roller cam/lifters (like the ones Comp cams sell for instance). The firing order will be determined on how they ground the cam.
If I'm not mistaken, I believe the roller block has taller lifter bores compared to a non roller to make up for the taller roller lifter. That is why you would need the roller lifter conversion kit as Lars D mentioned.
It should work. You will need larger injectors & fuel pump to supply fuel to the engine. You will also need either an aftermarket MAF designed to match the larger injectors or a custom dyno tune & chip to match the engine & injectors.
It should work. You will need larger injectors & fuel pump to supply fuel to the engine. You will also need either an aftermarket MAF designed to match the larger injectors or a custom dyno tune & chip to match the engine & injectors.
the only thing i want to change is the cam to this, https://www.lunatipower.com/Product.aspx?id=2513&gid=309
it would add some lift and change the firing order, i just dont like how they say Computer-Controlled Compatible / No