Hello, I have 68 442 with 455 cast iron E heads minor port, TH400, 4:10 rearend, car has power break.

I found two cams with same specs except lobe center is different, Which lobe center will be suitable for my engine?

Cam specs:

HYD. flat tappet 304/316.
Duration @ .050" Lift: Intake / Exhaust. 234 / 244
Valve Lift: Intake / Exhaust .520 / .542
Lobe center: 112

other cam lobe center is INT. 107/ EXH. 117

 

They're the same camshaft, 117+107/2 is 112.
What is your compression? That cam will be lazy unless you have upwards of 11.0:1.

Thanks.

 

Thank you Mark for the information I'm not expert with engines, I think compression is 10 or more I remember previouse owner told me around 10.5:1.

 

Unfortunately your combo is a little off. Unless you're going to race it the 4.11 rear gear is a waste. You normally won't be turning it high enough to use it.
But now you have a high gear, which is fine with a bigger cam, but you have power brakes and your converter is unknown. You might want to verify that as well.