yurizx6r

Hey guys, I'm preparing for heads (oh dear God it's time). I am currently preparing my fuel system by installing a 255LPH fuel pump and a Aeromotive adjustable fuel pressure regulator. I'm shopping for either a good deal on a long block or just heads. My current engine has very good compression and zero issues, so I feel like either way would be fine.

If I do go with just the heads, I either want the Trick Flow Twisted Wedge or AFR heads. Nothing else. Assuming that I would end up with The Trick Flow, a Ford Racing E303 cam, Trick Flow Track heat intake, 70mm TB, C&L 76mm MAF, BBK CAI, and a full off road exhaust. Would I be safe to assume that 30lbl fuel injectors would be fine? I know that the Trick Flow "top end kit" claims to produce "360 hp," and according to theory, the 24lbl injectors should be near their 80% duty cycle, so I guess the 30's would be more appropriate?

Also, when setting the fuel pressure on that set up, I assume I would start with 39psi, then see how rich or lean it runs, then adjust accordingly right?

Thanks for any help and advice in advance.

bluebeastsrt

Im thinking 38-39psi with the hose removed from the regulator. Once you install the cam you'll have to probably readjust because you'll have less vacuum.

yurizx6r

Yeah, that's what I was thinking. Of course this is all just theory until I know what my setup will actually be. AFR's would be nice, but I'm not going to complain if I get Trick Flow's either. Everything else is what I have right now, so the only variable will be what heads are going on, and once I have those I'm just going to go with a conservative E303 cam. I'm sure there will be some fine tuning once everything is setup no matter what.

Venomantidote95

24s will be fine I doubt you'd see 80% DC on a 302 with hci. That cam is OK but not worth 200$. Get the TFS stg 1 and AFR 165 heads. I'd set the pressure to 40 vac off and let it rip. Of course there will be fine tuning involved.

reldla1996

I agree 24's would be fine, and likely the better choice, though 30's will work. 39 psi is factory, which is where you should be if the MA and injectors are lined up. Sometimes some fine tuning in either direction helps. I still use the factory fuel regulator on mine.

Venomantidote95

Keep in mind your injectors are flow rated at 43.5 psi so anything over that your injector is flowing a tad more fuel. You can make an injector too small act bigger and one too big act smaller just takes some adjusting.

yurizx6r

It's funny you say that, I was considering the TFS stage 1 cam also. I was just leaning toward the E303 cam because I heard it has a good idle and overall that's what is the most important thing to me (drive-ability and less headaches). How does the TFS stage 1 cam act and why would it be better than the E303? I agree on the AFR's too, I'm hoping to find some of those, but ultimately it will come down to if I get my hands on some in good condition.

Venomantidote95

Its a dual pattern camshaft. The lift is similar the lobe step is the same and the duration is slightly higher. The exam is .498/.498 220/220 110 TFS 1 is .499/.510 221/225 110 it'll idle fine. I can't knock the ecam cause I've used it more than once.

yurizx6r

Hey I will take your word for it. As long as it's a street friendly cam and has a stable idle... I'll take it! I would like to keep things all Trick Flow anyways.

bluebeastsrt

I had a stage 1 cam in my car when it ran mid 10s on the spray. It's a street friendly mildish cam with a decent idle.