symonds86

i have been debating this since started building the car, as ya know im building a 347 with 225 afr heads the block came with a CI cam that was built for a EFI car. and i am weighing my options here. i know carb would be cheaper and easier to tune, plus there are no tuners around here. but i would have to get a new cam, intake, and dizzy. if i went EFI i wouldn't need a new dizzy, i already have a efi vic jr intake and a cam. but injectors, maf, and tb cost a ton as you know, plus i have to haul the car 100 miles to get it tuned. what are your guys opinions here. thanks

96blackbetty

I'm curious about this, but I have heard that you can run your stock dizzy.....as long as you leave your computer in the car???? have no idea, but all I've ever heard you need to run carb is a 4bl intake, carb, and fuel pressure regulator and/or low psi fuel pump?


I will defer to someone that has more knowlege on this

My vote is for carb tho

mjr46

CARB, YOU can tune it yourself

primetime5.0

efi all day! carbs are lame! and what makes you think you have to have some kinda dyno tune?

mjr46

you wanna race my lame carbed car ???lol

primetime5.0

whenever your near by

symonds86

the cam was designed for 225 heads, 42lb injectors, 90mm maf and 95mm tb so i figured that would equal a needed tune.

mjr46

lol don't think I'll make it out there for a while , besides you'd win right now...mine is heartless

92hatchLX

Who wants to race my lame car?

BTW if you've got the cash EFI. If not save up the money and keep it EFI.

symonds86

these are the cam specs there isn't any reason i couldn't run it if i went carb are there? as long as the carb is the correct size then it should work correct?

intake:

AT .006: 276.01
AT .020: 252.34
At .050: 224.32
LOBE AREA AT .050: 28.15 In*Deg
AT .200: 148.98
LOBE LIFT: .37749"
LASH HOT: HYD HOT
ROCKERS RATIO: 1.6
GROSS LIFT: .604"
LOBE CENTERLINE: 110.33ATDC
OPEN AT .050: 1.83 BTDC
CLOSE AT .50: 42.49 ABDC
LIFT AT TDC: .0499" @ 110.33 ATDC Intake Center


Exhaust:

AT .006: 307.22
AT .020: 272.58
At .050: 240.69
LOBE AREA AT .050: 28.76 In*Deg
AT .200: 154.41
LOBE LIFT: .35999"
LASH HOT: HYD HOT
ROCKERS RATIO: 1.6
GROSS LIFT: .576"
LOBE CENTERLINE: 115.35BTDC
OPEN AT .050: 55.69 BBDC
CLOSE AT .50: 5.00 ABDC
LIFT AT TDC: .0682" @ 115.35 BTDC Entake Center

Notes to James Sleicher:

Cranking Compression 185 PSI
Idle Vacuum 13.5"
Idle RPM 800 RPM to 900 RPM
Peak Torque 4600 RPM
Peak Horsepower 6100 RPM
Torque Converter Stick Shift
Sharting Shift Point 6800 RPM
Starting Cross RPM 7000 RPM to 7200 RPM
REDLINE 7400 RPM