what cam to use?

[stallion922002]

I need to know if anyone is running a ford racing F303 cam with stock heads? do you need to fly cut them or no? any info is greatly appreaciated!!
my build consist of:
stock heads ported and polished and intakes
3:73 gear built rear end
electric fan
aluminum driveshaft
centerforce dualfriction clutch
headers and punched cats
underdrive pulleys
1:6 roller rockers
and 200 wet shot of spray

 

[bock]

I run a F-303 cam with TFS TW no flycuting was needed..

The TW have the big valve (2.02-1.60)
The stock E7 have if im not wrong 1.76 and 1.54 valves

So.... i really dont see why it wont pass..... really dont....

 

[90mustangGT]

Flycutting the pistons, no, the stock heads and valves, fine, but the stock valve springs are not. The guy I just bought all my fuel upgrades from is parting out. He was running the F cam with stock valve springs. He got valve float at a little over 3500rpms, and about a year after installing the cam the valve spring broke, and destroyed the engine.

 

[stallion922002]

I bought new crane spring for the heads. The reason I am doing stock heads is I want to see what I can get out of this engine with factory stuff, plus a cam. My goal is to do mid 11's on spray with a stock suspention and and stock motor with work done to it.Plus I'm cheap.Money is tight right now! I hear the F cam has too much lift and will need a flycut done to have it work.