Porting TPI bases
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Car: 1986 Iroc Z 28
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Transmission: 4L60
Axle/Gears: 3.73
Porting TPI bases
Does anybody know of a shop that stills ports TPI bases? Hi Flow Fuel Injection used to but he doesnt do it anymore.
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Car: 1989 Pontiac Formula 350
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Re: Porting TPI bases
There's a guy on eBay that posts up a bunch there, but no idea how good their work is.
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Car: 1986 Iroc Z 28
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Car: 1986 Iroc Z 28
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Re: Porting TPI bases
Check these guys out for extrude honing.
http://www.extrudehoneafm.com/industries/automotive/
Also here is a good article where they extrude honed a stock tpi base and got some impressive flow numbers out of it.
http://www.powerperformancenews.com/...tion-upgrades/
http://www.extrudehoneafm.com/industries/automotive/
Also here is a good article where they extrude honed a stock tpi base and got some impressive flow numbers out of it.
http://www.powerperformancenews.com/...tion-upgrades/