1SLOSBC

depending on weight, cylinder heads, and the lift on the cam, id say that cam might get you an 11.99.
if you wanna go FAST on motor, look in the 240 range if you are staying with a small block.

IHI-ls1's with carbs do run very nice.
no tuning needed.

2fbodies2NV

Ok, here's what I recently acquired: 383 stroker with Callies Stealth crank, Oliver billet rods, forged JE pistons, AFR 220 CC heads, and ZZ9 cam. (not bad for $2700. huh? ) Now all I really need is to have my HSR intake ported to a 1206 gasket, have a chip burnt, get AN line, and a tq converter. I think I'm gonna take a stab at EFI first, and if it doesn't work out, there's plenty of carbs and intakes around.

1SLOSBC

undercammed or overheaded.
if the efi can support it, id try a more agressive cam if you dont see the results you are looking for.
good luck.!

2fbodies2NV

I was thinking the same thing actually. I have another cam, brand new that I was probably going to put in it. Its a .554/.554 lift w/ 1.6's, 224/224 dur @.050, with a 110 lsa. Hyd roller also.

1SLOSBC

with the larger heads, you prolly wont benefit from the lower and midrange of the smaller cam(less velocity with the big runner) id think youd still need something bigger duration wise so you can really take advantage of the heads.

damien8618

I'd try a 406 with long conecting rods, turn the crank 30 under, have a engine builder who knows how to build a race engine build it, have at least 12:1 compression, use a healthy cam, make shure it has a windage tray and crank scraper., and run 2 quarts of low viscosisty oil.

1SLOSBC

um no.
turn it 30 so its unusable after the 1st rebuild?
dumb.
you dont need a 406, and a long rodded 406 is even worse.
dont need anywhere near 12:1 compression for what he is trying to do, and 2quarts of oil? you gonna burn a motor up if its driven like that. maybe a track pass or two if you really wanted to pull every inch out of it, but its gonna leave the bottom end dry for a few seconds at the top of the run.
not good for a street motor, as it will have excelerated wear on the bearings.
.

91Z-28

Plenty of guys have gone 11s in 350s with cams like the cc503 and hotcam, and they are nowhere near 240 duration. This is with a good cylinder head like AFR 195s and a decent intake like a MR or HSR though. A few guys on stealthram.com have even run 11.7 with as little as 340ish rwhp.

1SLOSBC

to run high 11's (70-99) you dont. a 230 ish cam can get the job done.
if he wants to go fast(10's) he is gonna need to step it up.
my car can pop 11.28 and thats with only 380rwhp.
just depends on things mentioned above. gear, weight, converter and power under the curve.

NastyTA

Been 11.89@112

4 bolt block,square and zero decked, eagle crank, eagle 400 rods, custom pistons, 10.25:1 compression, AFR 195's, untouched ports, 5 angle valve job and custom chambers (flow 270cfm @ .550") custom ISKY cam (right around the same as a Hot Cam ) Holley 650 carb on a dual plane intake. MSD pro billet mechanical distributor, blaster 2 coil and 6AL box. Have a TH400 with 3200 stall, 10 bolt with 3.73's and 28" Mickey Thompson radials. Car has full interior, no heat, no a/c, all the ducts were removed from under the dash. Still have a radio .

The engine made 430hp/460tq at the flywheel on a Hoffman dyno with Depac data acquisition system. Made 400+ from 4600-5600 RPM and torque peak was below 4300.

The car is extremely streetable with such a small cam. When the weather is nice it get's driven to work as much as I can.

ws6transam

That still sounds small for a 383 stroker with AFR220 heads. With that much volume, you should probably be looking for a 236/242 duration solid roller cam with 112 degree LSA, dialed in on a 106 to 108 degree intake lobe centerline. That should get you the cam necessary to punch all the way out to 6700 RPM where your cylinder heads will need to flow in order to find the high 10's.

You'll also need to consider an aftermarket EFI controller, if you havent gotten one already. The GM speed density system, though capable, may be hard to tune appropriately.

Injector sizing will be an issue, too. Probably will need some 36 to 42 pounders.

1SLOSBC

bingo

2fbodies2NV

I have 38# injectors. I's rather stay hyd roller. With the HSR, I don't see me going much above 6500 rpms. The specs are from 106* centerline.

ws6transam

Just a side note,
With a 230/236 cam, my power starts to roll off at 6250 RPM with a Miniram. I also use 30 pound injectors with 85% peak duty cycle.

On a 224 cam, your power will peak well before 6000 RPM. At that rate, I dont think you'll be effectively using those big 220 cc ports, the forged bottom end or those 38 pound injectors. Then again, maybe you are thinking of installing a dual stage dry nitrous system??

2fbodies2NV

I have a Compucar wet kit, but I wasn't planning on anything big. Maybe a 125 shot @ most.