What can I do with this to make it more " matched"
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Joined: Jan 2003
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From: Ontario, Canada
Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class
What can I do with this to make it more " matched"
I got the Edlebrock base and runners( both mildy ported ) ..... with tthe ZZ4 cam running 10:1 C/R stock injectors and TB . Stock heads with some bowl work and a 3 angle valve job screw in studs ...roller 1.52 rockers.
I am trying to maximize this setup ........ I am assumeing the heads would be the greatest restriction ....... Is there a set of heads out there that would compliment this setup better .......I am reading that bigger is not always better ......
I "might" have a line on a set of Edlebrock RPM heads ......would this be a gross mismatch for this cam and intake?
I am trying to maximize this setup ........ I am assumeing the heads would be the greatest restriction ....... Is there a set of heads out there that would compliment this setup better .......I am reading that bigger is not always better ......
I "might" have a line on a set of Edlebrock RPM heads ......would this be a gross mismatch for this cam and intake?
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From: Arthur, Ontario, Canada
Car: 92Z28, 99SS, 83Z28 & 86GTA
Engine: 421, LS1, 327Turbo & 383
Transmission: T-56, 4L60E, T5 & 4L60
Axle/Gears: 4:10, 3:42, 2:73 & 3:27
They will work with your setup fine but find out what CR u will have with them heads vs your stock ones. U dont want to be too high depending what his cc is.
Basicaly the true ?? should be how much $$ willing to spend? As theres tons of heads out there that will work. hard to make a suggestion with out knowing your budget. Ex. Vortec to AFR's
Basicaly the true ?? should be how much $$ willing to spend? As theres tons of heads out there that will work. hard to make a suggestion with out knowing your budget. Ex. Vortec to AFR's
Thread Starter
Supreme Member
Joined: Jan 2003
Posts: 1,931
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From: Ontario, Canada
Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class
I want to keep the 10:1 compression ratio ...... I can't afford the " correct" heads ..... just trying to come as close as I can to
optimiseing the setup
optimiseing the setup
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From: Cypress, California
Car: 1989 GTA
Engine: 369 TPI
Transmission: 4L60E
Axle/Gears: 3.70 Nine Bolt
Do you have headers on your car. One of the biggest improvements will be to free up the exhaust system if you have not done so already. This will maximize everything else you do ahead of it. Parley
Thread Starter
Supreme Member
Joined: Jan 2003
Posts: 1,931
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From: Ontario, Canada
Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class
Yes I am going to get headers .....I wanted 1 3/4 .......so I could use them on a different motor if need be ( I would probably go bigger ) . a 3" exaust will be comeing with it
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Car: 89 Formula 350
Engine: 360 / HSR
Transmission: T56
Axle/Gears: 3.27
The Performer RPM heads will work fine with that setup if you're getting a deal on them. They'll have either 64cc or 70cc combustion chambers. The 64cc version would be better.
Thread Starter
Supreme Member
Joined: Jan 2003
Posts: 1,931
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From: Ontario, Canada
Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class
Thanx man ..... there is a set of 180 Pro Lightening heads I see aswell ..... but they are Iron so......
yes I would like to keep the 10:1 C/R so I am hopeing them heads are the 64cc
thanx
yes I would like to keep the 10:1 C/R so I am hopeing them heads are the 64cc
thanx
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Thread Starter
Supreme Member
Joined: Jan 2003
Posts: 1,931
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From: Ontario, Canada
Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class
quintuple post ...sorry 
Dam dial up ...I thought my computer froze
please selete these wastes of time Mr. Moderator
Dam dial up ...I thought my computer frozeplease selete these wastes of time Mr. Moderator
Last edited by D's89IROCZ; Oct 26, 2003 at 11:50 AM.
Thread Starter
Supreme Member
Joined: Jan 2003
Posts: 1,931
Likes: 1
From: Ontario, Canada
Car: 1989 IROC-Z
Engine: 5.7L EFI LTR setup
Transmission: T-5 World Class
quadruple post .....sorry I can't delete these
Last edited by D's89IROCZ; Oct 26, 2003 at 11:48 AM.
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