86Capri2GT

thats awesome man i just purchased some 40p's today for 270 shipped
btw what would be an est. time with a 5 speed and a good driver cuttin some 1.8 short times

mjr46

I would do the e-cam as P heads peak flow rate is reached around .500 liftand you'll need a special set of headers for the P heads.....

86Capri2GT

alright i just want to say thanks to everyone that has given me some input and advice i appreciate it im tryin to learn as much about the 5.0 engine and the capabilities of it and i think that this is the place that will help me the most. now as far as the headers how much do they usually run and where can they be found i searched on yahoo and came up with one site that used to carry them but no longer stocks them which was summit.

hey btw mjr on ur profile it says ur from md if thats tru what part? i live in dundalk

94 G STANG

my bbk unequal lengthshorties fit just fine on my 94 with gt40ps, i used 90 degree angle plug wires though.

86Capri2GT

i dunno how that would work out beings mine is an 86 iunno bout the engine bay measurements but as far as the plug wires do u have the option to get 90 degree angles? i have 45s rite now

mjr46

check out TAYLOR wires they have small angles and ends when clearence is an issue... I had issues with clearence on my 66 where ford racing wires hit the headers big time so I got a set of taylor special angle ended wires (forgot the angle ) but anyway they worked great

86Capri2GT

sweet thanks guys i ordered my gt40p's now i think imma go with the e303 as r.barn suggested and im going to take it from there hope things work out im going to also order the jet kit for my nitrous plate and get it all together thanks again for you guys help

67mustang302

Get a smaller carburetor. 750cfm is way way too big for a 302, especially one that's mostly stock. As for manifolds, the Performer is good out to 6,000rpm but isn't anything more than a stock manifold, the RPM or RPM Air Gap would be good, or for a slightly lower rpm range manifold(the RPM will easily go out to 7,000) you could use the new Weiand Action Plus(pn 8124, listed to 5,500rpm but that's pretty conservative). With a 570cfm, carb on that intake, AFR 165heads yadda yadda I ran the time in my sig(on street tires at 40psi with a freakin 3.00 gear), and it will still pull like a **** out to 6,500rpm if I let it, but I shift at 6k. Now Ive slapped an open spacer on it to see how it likes it, and after a bit of tuning it seems like it picked up power everywhere. You'll prolly make more power with just a smaller carb alone, vacuum secondary or not, larger carbs need larger air flow to generate the signal required to get adequate fuel sheer at the boosters, better fuel sheer = better atomisation, better atomisation = better combustion, and therefore, better power. You can jet that carb up and down all you want, it's never going to generate the same fuel sheer as you will with a smaller carb(and even with vacuum secondaries, if they never open all the way then at WOT the throttle blades are creating turbulence which will both distrupt booster signal and therefore fuel sheer and atomisation, AND as the air/fuel charge smashes into the partially open throttle it will change pressure and cause fuel to try and fall out of suspension and result in poorer atomisation). You put the right sized carb on it and you'll get better sheer, atomisation, distrobution and power, not to mention mileage.

Other than that, yeah, heads, cam and juice!!!! [sm=nxsmile.gif] and don't forget suspension

86Capri2GT

ill have to look into the carb i am already in teh process for a new intake i like the rpm air gap one personally but next year im thinking turbo or blower possibly stroking to a 331but for now i just want a good running car also thanks for that info it was very useful

67mustang302

If you do a stroker, then the RPM Air Gap would be best, it actually has a slightly larger plenum and runners than the standard RPM to make it more compatible with stroker applications. And if you can't afford a new carb you can try to tune it with a 4 hole spacer(NOT an open spacer) to bring the air velocity up and make better bottom end power, though with that large a carburetor it'll prolly make more power everywhere with a 4 hole. And spacers are a lot cheaper than carburetors, and yes, on a carb'd engine they make a HUGE difference in how the engine performs, especially with 1" or larger spacers(the taller the spacer the greater the effect)