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need help with 85 iroc z

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Old Aug 20, 2002 | 10:59 PM
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pepperdad's Avatar
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need help with 85 iroc z

i own an '85 camaro iroc z, 305ci, 700r4 trans. i want to put new cylinder heads, intake manifold, and camshaft in it, but i dont know how to properly match all three to get a well balanced engine. i've looked in all the mags and books but havent been able to come up with anything. i would appreciate any advice. thanks. Ryan.
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Old Aug 21, 2002 | 11:04 AM
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Morley's Avatar
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Is this a TPI engine or carbed?
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Old Aug 21, 2002 | 11:53 AM
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From: Orygun
The 305 kills your head choices

I'd say vette aluminum L98's, a cam with duraton between 210-215 114 lsa and as much lift as you can afford.

a good stall

maybe an edelbrock base and slp runners?


There's endless combos all over the boards, maybe browse the readers ride section and find someone with a 305 and some good track times to use as an example.
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Old Aug 21, 2002 | 01:58 PM
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From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
I'd try to decide what your performance goals are first, then choose an approach. Chances are, putting big bucks into a 305 won't be the cheapest way to get what you want.
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Old Aug 21, 2002 | 03:03 PM
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From: Orygun
Dang jim you're catch'n up with mark sheilds
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Old Aug 21, 2002 | 09:37 PM
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From: Readsboro, VT
Car: 85 IROC-Z / 88 GTA
Engine: 403 LSx (Pending) / 355 Tuned Port
Transmission: T56 Magnum (Pending) / T5
Axle/Gears: 3.42 / ?
Originally posted by tpi_roc
Dang jim you're catch'n up with mark sheilds
What, my posts? I used to post a LOT more back a few years ago. I don't post nearly as much anymore.

Actually, I had around 3,000 or more posts when we all got reset in 99. I've been around since 95, back when this place was still hosted on Dirk's .edu account!
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