Im already thinking about some winter projects and as yall know ill be getting my motor back together prolly next week or so..... and this winter im thinking about getting a xcelarator intake by weiand its a single plane it says its good from 1500 to 6500 rpms and it only cost 125 bucks.......


also i think i may upgrade from my stock convertor to 3000 holeshot by B&M

itll be a 60 over 350 wit 10 to 1 comp and some 441 heads freshind up a bit wit a comp XE 268H-10.....although i only have a 308 pegleg im going to try and get a posi unit or a posi rearend......and then of coarse some drag radials :D im thinking this should be a peppy little setup......

There is no need for a 3000 stall convertor with that cam. I run that same cam with a set of vortec heads in my 3.08 geared 4500 pound '78 chevy truck, and even with a 2000 stall B&M holeshot convertor, it burns the tires off easily. However, that cam really comes alive at about 2500 rpms, so a 2400-2600 stall convertor IMO is perfect. Plus, with a 3.08 gear, a 3000 stall convertor is IMO too much no matter what cam is in there.
Also, if you run an x-cellerator, use the 7546 and definately use the supplied plenum divider. This intake just spanks the cheaper 7547 all over the place.

i would try running an Edlebrock RPM intake instead of the Xcellerator. if you just want Weiand for some reason then go with the Stealth dual plane. you do not need a single plane intake with an xe268 and 3.08 gears. the 3000 stall will definately help with the bottomend but will be a PITA to drive on the street because it'll always be slipping.

well i got to thinking about it and it think that the tci 2400 - 2600 stal break away should do....... Id like to have a single plane b/c they build more power but yet this on is really a whole lot cheaper.....

A RPM will make a lot more torque and HP than that intake. You can't just say that a single plane makes more power. Every single one is designed differently.

What Doug said :D
Especially with the cam you are planning.

a single plane intake will not make more power with that cam and that low of compression, and the X-cellerator won't make more power period. a victor jr might make more power if you had more compression and cam and 200cc heads, but for what you have said you're going to run as far as the whole combo, you DEFINATELY need to run an rpm, air gap, stealth, or some other similar dual plane intake. even on fairly healthy 406's an rpm or rpm air gap will make as much if not more torque and hp than any single plane. so on a 350 with mild compression, stock heads, and a mild cam, you will be alot happier with a dual plane. i think the Stealth sells for around $100 still. rpm intake is around $125, so they are no more than the X-cellerator brand new anyway. IMO, the best suited intake would be the performer rpm, hands down.

The single plane might make more power on a 7000 rpm motor or a nitrous motor,but like the others said,,,it will make yours a turd.

aight well i guess the RPM will be my choice....but it was a thought.....this all is going to be for a winter project.....were going to pull the tranny and put a shiftkit and the torque convertor......and while im at it im going to swap intakes and go for some roller rockers.....can anyone tell me how much it costs for a posi unit for a 10 bolt.....i guess it would be a 8.2 its the original in my 69 so......

sxt9shovel,

Please check your other post about the old SP-2P.

pdq67

Originally posted by sxty9shovel:
aight well i guess the RPM will be my choice....but it was a thought.....this all is going to be for a winter project.....were going to pull the tranny and put a shiftkit and the torque convertor......and while im at it im going to swap intakes and go for some roller rockers.....can anyone tell me how much it costs for a posi unit for a 10 bolt.....i guess it would be a 8.2 its the original in my 69 so...... Email "biggearhead" or post in the Transmission forum and he'll be sure to send you an email with pricing.

OR

Call up Tom's Differentials in Paramount, CA. Best prices on 10bolt posi units, at least that's what I've found.
(562) 634-8431
(562) 634-8452
(562) 634-2841 (Fax)

Hate to disagree, but I have always liked the midrise smaller plenum single plane intakes. One of my favorite SBC intakes was the Edelbrock Single PLane Streetmaster. I used to run this on a 8.5/1 350 with the 327/350 cam and a plain vanilla 600 Holley. This was very strong running combination. A little flat below 1000 - 1500, but ran great everywhere else, nothing a converter can't fix. IMHO, too many guys try to run SBC's the same way as a BBC. It's not the same, SBC's need RPM range and gears. At least that's how I like to run them.

Originally posted by GRN69CHV:
Hate to disagree, but I have always liked the midrise smaller plenum single plane intakes. One of my favorite SBC intakes was the Edelbrock Single PLane Streetmaster. I used to run this on a 8.5/1 350 with the 327/350 cam and a plain vanilla 600 Holley. This was very strong running combination. A little flat below 1000 - 1500, but ran great everywhere else, nothing a converter can't fix. IMHO, too many guys try to run SBC's the same way as a BBC. It's not the same, SBC's need RPM range and gears. At least that's how I like to run them. =
I think if you were to compare a Performer or Air Gap you will be surprised at the difference in performance between any single plane to 6000.
In every test I have done or seen the RPM type intake just killed any single plane to about 3500-4000 & lost nothing to somewhere around 6000 give or take a few hundred RPM.

Now if you put some compression & a cam that is capable of making power to 6500+ together, that is a completely different deal ;)

Dual planes not only made significantly more torque, but made more HP at 6000 RPM in a 400 HP SBC I just got done doing extensive intake testing on.

At 425 HP and less, there's no question what I'd run with a carb.

At 425+ HP it might depend on the converter and gears, but from what I've seen an RPM will really hold its own as will other intakes like the Holley 300-36.

My choice is a good old Holley 300-36 true high-rise dual plane intake!!

pdq67