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are there proformance plenums

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Old Jan 21, 2001 | 11:37 PM
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85F-body's Avatar
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From: houston,tx.usa
are there proformance plenums

i was thinking about getting some siamese runners and i was thinking that if i do there will be that lil bar in the way on the plenum if i do get some siamese runners and are there special gaskets for siamese runners
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Old Jan 22, 2001 | 06:21 AM
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From: Columbus,OH
You can easily port them out to match your runners, and you can also clean up some other things inside to increase flow. I think there is a tech article on it. If not I know that tpis insiders hints have an section on what to do when porting one. I ported mine to match SLPs runners and it took me about 3 hours to et it to the way I wanted it
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Old Jan 22, 2001 | 04:02 PM
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85F-body's Avatar
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From: houston,tx.usa
my friends dad is a mechanic and i think i am gonna give him the plenum to port but i am not sure what size the runners that i am getting are whould it be safe to just grind through the whole middle bar and then just do the same on the gasket or not
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Old Jan 23, 2001 | 11:17 AM
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From: Haslett, MI
Car: 1984 Trans Am WS6
Engine: Minirammed 385, 396 RWHP
Transmission: T56
Axle/Gears: 3.73 Moser 12-bolt
I'm porting plenums for $60. Check out http://www.isthq.com/~dan/efi.html for details. I have references as well as core plenums.

It'll take about one week to turn it around for you.


------------------
Daniel Burk
http://www.isthq.com/~dan/fcar.html
'84 Trans Am WS6/L69
KB SFC, Moser axles, Torsen Diff. PST suspension, Braided stainless brake lines, Koni struts, 11-inch rear disks,Spohn Adj. torque arm,
Ported 305 heads w/1.94"intake valves, Comp Cams XE262H, Griffen alum. radiator,
Turbine Technologies 2500 stall converter, underdrive pulleys, Crane Hi-6 & more.
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New best E/T! 14.039 at 100.82 MPH in 41 degree air at Stanton, Michigan.
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