5.0 internals and combo

[Scorcher2005]

How much HP can the stock internals take? I plan on getting 420 N/A HP from my 302. Also, in the future, i may run 5-6 psi on stock internals to get 460-500 hp until they break or i get forged internals.
My combo for the N/A 420 hp 302:
-ported trick flow twisted wedge heads (matches afr 185s on intake, a lil less on the exhaust)
-trick flow track heat intake (should this be port matched to the heads?)
-Ed Curtis custom cam
-75mm throttle body
-approx 76mm MAF
-CAI
-30# injectors (will these need to be upped to 36# for the 5-6psi?)
-255lph fuel pump
-BBK shorties, BBK x-pipe w/ cats, 2 chamber 40 series flowmasters w/ tailpipes


Also, to hit my goal of a high 11/low 12 sec 1/4 mile i plan on adding a trans-go shift kit and either 3.73s or 4.10s (Please help me decide). Any other suggestions?

 

[houstonstangguy]

How much HP can the stock internals take? I plan on getting 420 N/A HP from my 302. Also, in the future, i may run 5-6 psi on stock internals to get 460-500 hp until they break or i get forged internals.
My combo for the N/A 420 hp 302:
-ported trick flow twisted wedge heads (matches afr 185s on intake, a lil less on the exhaust)
-trick flow track heat intake (should this be port matched to the heads?)
-Ed Curtis custom cam
-75mm throttle body
-approx 76mm MAF
-CAI
-30# injectors (will these need to be upped to 36# for the 5-6psi?)
-255lph fuel pump
-BBK shorties, BBK x-pipe w/ cats, 2 chamber 40 series flowmasters w/ tailpipes


Also, to hit my goal of a high 11/low 12 sec 1/4 mile i plan on adding a trans-go shift kit and either 3.73s or 4.10s (Please help me decide). Any other suggestions?

not to burst your bubble but that combo wont be good for 420 n/a hp on a little 302.

my 331 is making just under that (about 410) and I am running about 10.2:1 compression, yours is only 9:1

I am thinking you are about 30-40hp off.

 

[Scorcher2005]

well i contacted ed surtis and he said he could make me a cam profile good for that and from what i have heard - he knows his stuff. besides, im a high achiever

 

[houstonstangguy]

oh no doubt he knows his stuff but a cam will only do so much for you. on a stock bottom end 302 you will have to rev that thing far more than it will accept to see those numbers but good luck.

 

[Scorcher2005]

do you say that because the bottom end will be heavier than if i built the bottom end too? anyways, here is an article on a budget 400 hp 302:
http://www.fordmuscle.com/archives/1999/12/400HP/index4.shtml

 

[houstonstangguy]

i have an old article in one of the magazines and both that article plus the one you have attached are carb'd which does in fact make more power usually.

honestly I am surprised nobody else has posted on here but me, but lets wait and see what others have to say on the subject. Alot of people with 302 or 306 combos with afr heads and several different cams make in the neighborhood of 350-380 hp at the fly which is a substantial amount of power for a 302 or 306 that is n/a.

the more power a cam makes, the less streetable it is.