turbocamaro125

iTrader: (3)

As the title states....which one will perform better on a...

383 LS1
Afr 205 heads
comp cam 239/247 590 to 600 lift Not 100% on the cam specs
11.0-11.5 compression
pump gas
1-7/8" headers

also looking to change the heads out to something in the 230cc range....maybe AFR 230's or PRC 227's.....

What would be the best combo "you" would build?

Gunslinger09

I think the Holly is like a tunnel ram and would feed your motor better at high RPM. The fast will be better down low for street applications I would think and you won't have clearance problems.

mark21742

Never had the Holley, but I absolutely love my Edelbrock proflo xt... Seems to do several things, give more top end, while broadening the entire powerband and smooths out the idle some on a bigger cam...I'd also ditch the MAF and run in SD mode.

turbocamaro125

iTrader: (3)

the combo is goin in a 69 camaro so clearance problems...

and the car is tuned for sd also....sorry for not putting that info up front

mark21742

On my 04 GTO the Edelbrock sat just over an inch and a half out of the hood, but I think the Holley is a hair shorter

turbocamaro125

iTrader: (3)

Edelbrock Xt is like 10.5"
Holley is 12.32"

mark21742

The true measurement I took on mine was 10.75" st the top of the tb mount to the lowest part of the intake flanges.....I thought I had read the Holley was just over 9" tall, but that might have been with the top plate unbolted.....lol i never been wrong before!

bww3588

iTrader: (49)

Fast for a street vehicle.

speedracer5532

iTrader: (8)

A 383 has a 3.9 bore. The larger AFR heads do better on 4.0 and larger bore cylinders. This a N/A motor with a hydraulic roller cam street car, so I would stick with the FAST intake, for better throttle response and a broader powerband.

turbocamaro125

iTrader: (3)

Afr has a 230 3.90 bore head