You made me think of another interesting point... If he is running a cam that lopes, IT WILL NOT BE IN POWERBAND BEFORE 1500 RPM... Enough duration to lope and it is not an 'off idle' cam. So why use an intake that is wasting power band below the cam? He either needs an RV cam, or Stealth intake to have a true matching combo.
Yeah, I was thinking Mavericks (since this is a Maverick forum), so my bad. Still though; the factory 4V intake is nothing more than a 4-barrel version of the 2V intake. The performer certainly has some similarities, but is in no way "identical". By the way, I agree with what everyone else here was saying about price. Don't pay a lot of $$$ for a Performer intake...
run one and you'll see. like edelbrock says it is "Designed for carbureted 302 c.i.d. Ford V8s with EGR. #3723 is stock replacement/street legal part for 302 2V V8s"
You honestly think that he will swap from stock 4v to Performer and notice a difference? I won't even argue with you that it won't make any difference or that I KNOW for a fact that the Performer has smaller ports and runners... Let's assume that the Performer will make a tiny bit more power than the stock 4v... He will spend valuable time and money doing the swap and will expect to see a gain from his labor... He won't notice a thing. The 'buttmeter' can't register gains that small. (Again, assuming there was going to be a gain.) Would you not agree.
No, My bad. Sorry about the truck part. I've learned what little I know about modifying engines by picking folks brains. Ya'll seemed pretty ripe around here and, boy am I learning! I got the cam I have by calling Cranecams and telling them the rest of the set up. There was previously an "economy cam" in the truck that was picked by an auto mechanics teacher that lead the students in rebuilding the engine as part of their class (I am a school teacher). Though I tried to be on top of the rebuild and what went in it, I found out later (the hard way) that the feller had no prior Ford experience and spent the next two years straightening things out. I don't know what the other cams specs were, but I surmised that I was not getting the power that I felt I should. especially out of an engine that REQUIRED super unleaded fuel to run. That is why I ultimately decided to go to the four barrel and get a known improved cam. The cam is Cranecams 363902 with an advertised duration of 204*/216* and a lift of .456"/.484". The lope very slight and dissappears at fast idle. The advertised power band is 1500 to 4500 RPM. ( The Cranecams salesman told me that it would run on regular unleaded, but it won't ). The power output is vastly improved, but I have figured out there are just a couple more relatively inexpensive things left to do. As to this being a Maverick sight, my daughter and I have one that will get its own modified 302 when the time is right, so NONE of the information coming from ya'll is wasted! Thanks guys, I'm having a great time!
had both the performer and rpm,and the performer has great off idle throttle response with or without a performance cam !!!! over 2,500 rpm,the performer RPM comes alive and its in a different league of it's own !!!! also read an article between a stock and a performer dyno flog and the performer had better average flow and distribution numbers than the stock cast iron manifold. but like stated above, find a cheap performer or just keep the OEM and fine tune what you have !!!!
A point that is, in this case, irrelevant, since the Performer still flows better overall than the stock intake...
:deadhorse This thread is pretty much done... yep... nothing more to add... it's been alive too long.. hehehehe
To all the nay sayers on using the RPM over a Performer, you obviously have not tried one on a stock to mild build. There is NO difference in the bottom end performance. I know this to be true, I've used too many of them. Same goes for the FE intakes. The RPM costs damn near the same, yet gives you the room to grow on. The Performer doesn't. I run a Ford A321 on the 5.0 in my 89 Ranger (3800 lbs, 4 speed, 3.73 rear) and the engine's just about on a par with the Explorer 5.0 in output. Same cam, 1.7 rockers, ported E7 heads, stock shortblock. The carb is even "too big" for it (Holley 3310 750 cfm) and it still has plenty of bottom end grunt, I can boil the rear tires on demand (275/60/15's) It'll pull and tow more than the radiator can handle. The manufacturer's rpm rating for these intakes is really misleading, they're just not rpm sensitive like most single plane's are. The A321 is a 40 year old intake, but it still performs on a par with the both RPM intkakes.
I for one, never bad-mouthed the RPM. I like the RPM. I made two points here; the first being that a standard Performer is not "identical" to a stock iron intake and does perform slightly better, and the second point was that on a mild application, the RPM offers no advantage over the standard Performer...
I've had a performer that came with the car, upgraded to a performer RPM (got it for free from a friend) but the best manifold by far was my Weiand Stealth. It has larger ports/ greater volume than a RPM or Air Gap and its .1" taller than a Victor Jr.
