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i ve always been imports but i recently purchased an old 69 ford f 100 with a 390 ,stock bore with 352 heads that has stainless valves size i dont know as well as port and polish dont know ,it has a mild erson cam duration only dont know that either ,and its currently set up with a edelbrock performer 390 intake manifold with a carter 650 cfm 4v carb it has dual exhaust with stock exhaust manifolds and and 3 inch dumps oh yeah im guessing the compression is about 10.6 to 1
this motor is strong.......but i want more ........so heres the question if YALL can
im looking for a different intake setup i want to keep my carb but i want a tunnel ram dual quad 360 degree intake manifold that will work with my stock distrib. i am having no luck finding any for the fe engines or tunnel rams period i know the cons but i love the gasser look i think offenhauser makes some but i cant find them
on the other hand......
i would like to consider a blower setup 671 871 setup but i dont know if my compression and mild upgrades is enough to select the type of blower i would like to use
theres plenty more i dont understand but at this time these are my two options im wanting to consider ....thankx
So first off, 352 heads and 390 heads are pretty much the same creature during any given year. As to the compression, if you don't have to run premium fuel all the time, then it ain't a 10.6 motor because the heads sure didn't raise the compression that much. As to the tunnel ram intake you want to use. If you install it you will have a motor that will have no bottom end and be useless on the street. Those things are strictly show or race only.
Step one with your engine would be set of headers.
You can't put a blower on top of 10:1 compression in that kind of engine. You need to be around 8:1.
There are some single 4bbl manifolds that work very well and one of those with a 750cfm carb might show some improvement. Not sure where your manifold sits in the performance spectrum. Some research here will give some comparisons.
ya gotta look hard but offy makes a lo profile dual quad intake still for the fe to this day . i found it buried in there online catalog when i was looking for an " alternate " induction system for the fe i was gonna put in one of my old effies . still had the fiined valve covers too .
Step one with your engine would be set of headers.
Do you have upgraded ignition or still have points? Ditch the points.
Stainless valves good....how's the rest of the valvetrain?
COMPLETELY AGREE 100% on these two pieces of advice. Listen to the man. These should be done before doing anything else. Bolting a Tunnel Ram on a stock exhausted FE is a complete waste of time. If you're going to do a Tunnel Ram use two Holley 390's. But unless your rearend gearing is steep, don't expect great things from it, unless you just want it for the "wow" factor.
hey thanks for the feedback everybody i recently had an exhaust leak and spoke to a muffler shop about putting some hedman headers on and they said due to the different metals itll cause warpage and this exhaust leak problem will re occur
and as far as my compression i made that figure up somewhat by cross refrencing some diff stats
i did see a dual 4v manifold but it wasnt a tunnel ram
but im no longer interested in changing my current setup anymore
im also starting to lean towards a nx wet kit stage 1 (150 to be safe ) nos setup and keep my current set up but as far as the headers go
i like a good flowing system so how do yall feel about headers and my second concern would be if yall know would i have some clearance problems and and if the fe heads are interchangeable on the blocks would exhaust bolt patterns stay the same as well
everybody has been helpfull this is advice i dont have to pay for im in the dallas texas area so if there a good shop out there that can answer my exhaust questions do let me know
maybe this question was irrelevant
and ill check out changing my points out to a msd if im correct but where would i find a bolt on setup without changing my distrib. ive seen this option before i just forgot where and what are the advantages
1) change points to a msd setup
2) headers
3) nx wet kit nos
and ill check out changing my points out to a msd if im correct but where would i find a bolt on setup without changing my distrib. ive seen this option before i just forgot where and what are the advantages
1) change points to a msd setup
2) headers
3) nx wet kit nos
ive only been on here a couple days but everybody was very helpfull i ordered the distrib ignition system (no more points) and after i pay all my other bills ill go after the nos and headers
and than ill take my 69 ford attitude against imports and race that hummer that keeps messing with me
BTW, Its a Myth that T-Rams dont have any bottom end !! Just look at the Dyno proven (Great Intake Comparo) on net54 332-428 forum done by Jay Brown...the T-ram did as well as any singe 4 intake and better than others..
And IF you go to a T-ram for street only? use the Holley/weiand as it has smaller runners and is more street friendly !
Second of all you can run a higher CR and still run a blower..you just cant turn the wick up..A good friend run's one on a stock 68 390 with 9.5 to 1 CR..But he is also only running a 15% underdrive....and still making over 500hp...
Third you definatly need headers...thats a NO brainer... JMO And Good Luck!!
As far as cheap headers and leaks go, not all leak, and not all rust (if driven daily, that's the key here) There are $100-200 headers out there that do well in daily drivers, you've just gotta use good gaskets, like the soft aluminum or copper ones. They cost more, but are worth the price.
Under drive pulleys for a blower are a larger (compare to the Crank Hub/Pulley) as to not spin the blower blades as fast.. hence a lower cylinder pressure, A basic rule of thumb for a street engine running say a 7.5 to 8.to 1 Cr is a 1 to 1 ratio...And when you go to a lager pulley on the blower than what at the crank then you get into a % of undr drive...
BDS, Don Hamton, Dyers, Holley, Cragar use too...Big Als toy box sells them also.theres quite a few out there that sell everything from comeplete blower kits to just accessories....
Underdrive Pulleys--- If you have an engine that's always on the borderline of running hot, don't use the underdrives. Or if your charging system is also having trouble keeping the amps up, don't use em. The only thing they do is slow down the accessories, which in a V8 like these, doesn't net you the same results they do in "ricer" low torque engines. gaining 5hp in an engine that's got plenty to start with, isn't the same as gaining 5 hp in a motor with a 100-150 hp output.
Last edited by baddad457; Feb 15, 2008 at 09:12 PM.