TPI Tuned Port Injection discussion and questions. LB9 and L98 tech, porting, tuning, and bolt-on aftermarket products.
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cam opinions needed

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Old Dec 21, 2006 | 03:33 PM
  #1  
MaNiAk86's Avatar
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From: Highwood, IL
Car: 1983 trans am
Engine: Vortec 350 w/ a comp cam
Transmission: B&Mth350 2800holeshot
Axle/Gears: 10bolt 3.23's
cam opinions needed

i am building a 355 non roller motor with brodix aluminum heads(180 cc in runner, 64 cc chamber with 2.02 1.60 valves) will this cam work well? it is a comp cams 260xfi cam.
http://www.jegs.com/webapp/wcs/store...61801_-1_10707
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Old Dec 21, 2006 | 05:24 PM
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From: south Louisiana
Car: 1985 Z28
Engine: 85 L98
Transmission: 700r4
Axle/Gears: stock 10 bolt-3.73 eaten posi
looks great to me. what intake combo are you going with?
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Old Dec 21, 2006 | 06:07 PM
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From: ct
Car: 1986 trans am
Engine: 383 hsr
Transmission: 700r4
Axle/Gears: 3.70
depending on your intake i would use the 268 xfi p/n 249-12-366-4 at jegs. i have a stealth ram and run that cam it is a great combo
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Old Dec 24, 2006 | 10:43 AM
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MaNiAk86's Avatar
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From: Highwood, IL
Car: 1983 trans am
Engine: Vortec 350 w/ a comp cam
Transmission: B&Mth350 2800holeshot
Axle/Gears: 10bolt 3.23's
i was going to go with a edelbrock base, as&m runners and ported plenum with 26# injectors and a 58mm throttle body. and everything will be portmatched so it willl alll flow together to create gobs of torque

transbird86: i think that cam is way too big for my tpi intake setup.

- do you think this combo could put me over 300hp at the wheels?
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Old Dec 24, 2006 | 12:43 PM
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From: ct
Car: 1986 trans am
Engine: 383 hsr
Transmission: 700r4
Axle/Gears: 3.70
it really isn't that big of a cam, i still passed emissions and make good low end torque, if you decide to get a higher stall converter i would definately get the 268 xfi. and yes you should definately be a little over 300 hp at the wheels with alot more torque.
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Old Dec 24, 2006 | 10:28 PM
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MaNiAk86's Avatar
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From: Highwood, IL
Car: 1983 trans am
Engine: Vortec 350 w/ a comp cam
Transmission: B&Mth350 2800holeshot
Axle/Gears: 10bolt 3.23's
i was planning on running a 2400 stall with a th350 with 3.42's in the rear until i swap it over to a t56.

what is the redline on your motor? i was plannin on shiftin it at only 5500 cause that is where the tpi drops off so a bigger cam wouldnt be worth it.
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