[jjperl]

Can any one tell me what the bore, stroke, piston cc, and piston type (dished, flat top, etc.) is on a 94 cobra? It has GT 40 heads.

Also what would a good compression ratio be for a 5.0 with a 9psi Paxton?

Basically, I'm looking to buy 165cc AFR cylinder heads and rockers as my next mod.

Here's what I have so far:
---------MOTOR---------
Novi 2000 Supercharger - 9psi
BBK 70MM Throttle Body
RC Racing 38lb Injectors
Walbro GSS255 Fuel Pump
TrickFlow - TFS 1 Camshaft
GT 40 heads
----------EXHAUST-----------
MAC - 1 3/4 primary x 3in collector Ceramic Coated Long Tube Headers
Dr. Gas - 3in to 2.5in Offroad X-Pipe
Bassani - Stainless Aftcat Catback - 2.5in - 3in Polished Tips
--------EEC / IGNITION----------
90MM Lightning MAF
DiabloSport Chipmaster Revolution Chip
Crane HI-6R Ignition and PS92 Coil
---------DRIVETRAIN------------
Fidanza Aluminum Flywheel
Ford Racing 3.73 Rear Gears

[White Thunder]

there going to tell you not to buy afr...and to get bigger heads and there going to tell you to get a better cam shaft

[jjperl]

I've made up my mind... I'm going with AFR heads. I just need specs so I can finish filling out a form.

[e3sean]

Ford Head Flow Data and Specs

this should help you decide which head to get

[M L Struck]

That's good stuff

[grnstang]

get 185cc AFR......itll be better for boost

[nolife]

Originally Posted by grnstang get 185cc AFR......itll be better for boost

You have to consider the whole package.. Plain old as from Ford GT40X heads with 10-12# will exceed what most people would consider safe for the stock block. Better heads would yield more power capability but your block would be pushed to the edge.