cobrakid94

Hello Stangers! I'm building a 347 with a cast Scat crank and KB Hyper flat top pistons. I will be using it for 85% street, 15% track. The heads I'm using are aluminum Ford Racing X306 with about .030" milled off. I plan to lightly port them (bowl and exhaust) and use Comp Cams XE 282HR. Here comes the real question: what other upgrades should I be looking at? There is alot of info regarding GT bottlenecks, but the Cobra has lots of factory upgrades: Intake, MAF, Throttle body, 24#injectors. Are these enough to support a 347?

My other installed parts are MAC equal length shorty headers, Bassani catted X pipe, 2 chamber Flows, and 3.73 gears. Thank You.

Venomantidote95

I`d go with atleast 30`s, a 75mm tb and the intake is iffy!

I`d go with a bigger primary headers than 1 5/8, it will be a peppy combo with just about any decent parts!

I used the scat crank and rods with KB pistons! it has been satisfactory so far!

and a clutch upgrade will be a plus!

tinman

IMO, you need 1 3/4" longtubes for that combo.
Also, you'll need to relieve the block atb the bottom of the cylinders.
I forgot where I got it but there is a tool sold by a company off E-Bay that works great......

AdderMk2

You shouldnt use any of the factory cobra parts on your 347. Most of your "upgrades" were good for a 302... not a 347

cobrakid94

What are your thoughts on the intake? Port it or somthing bigger? I'm running a t5 trans.

AdderMk2

something MUCH bigger

... but I'm alittle biased

cobrakid94

I'd say!

sn95_331_GT_ yellow

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