does anyone have the holley air foil on there tpi, because i can get it from work with my discount for $40 is it worth it or should i just get the TPI`s one?

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87 IROC-z 305 TPI 5spd Borg warner 9-bolt 3.45 posi 4 wheel disc,8.8 Accel wires , bosch platinum +4 plugs,gutted air box,k&n oil filter,synthetic oil 10w30

 

Go for it. It doesn't help much but it is the same as the rest of them.

 

Goto www.SLPonline.com thiers is on special for 26 bucks.

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87 Z28 305 TPI, Auto, 2.73, Gutted air boxes, K & N fillters, SLP Airfoil, Dyno Max 3" cat back, Accel 8.8 mm spirals, Accel cap and rotor, Accel coil, rapid fires, and 170* Stat.
Best 15.414 @ 87.47.

 

I can't say that I felt a difference with my air foil, but I installed it at the same time I installed my headers, so I can't say it didn't do anything, cuz I'm sure it did. I got the Jet one for $48 from Summit.

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1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission with 2.77:1 Rear End

Current Mods: LT4 Hot Cam, Edelbrock TES 1 5/8" Headers, Hooker 3" Aerochamber Cat-Back System, Gutted Catalytic Converter, Performance Resource Chip, Accel Ignition Coil, Cap, Rotor, 8.8mm Wires, K&N Filters, JET TPI Air Foil, Fully Ported TPI Plenum and Base, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET (w/o LT4 cam): 14.32 @ 97.7mph
(corrected for elevation)

 

Considering I never seen conclusive proof that an airfoil produces any extra HP I would go for the least expensive SLP. It is as high quality as any.

I installed one. Installation was smooth. I can't tell it did squat but it sure does look better.........LOL