My list of mods is in my sig, so what do you all think would be a good next mod? I was thinking SLP's siamesed runners. How much would cost to have those smoothed out on the insides (I've heard they are pretty rough inside) and to have them port matched the plenum, I don't want to match them to the base as I won't have time to pull that whole thing off again.

------------------
1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End with 2.77:1 Gears.

Current Mods: LT4 HOT Cam, Comp Cams 1.52:1 Roller Rocker Arms, Accel High Flow TPI Baseplate, Edelbrock TES 1 5/8" Headers, Catco 3" High-Flow Catalytic Converter, Hooker 3" Aerochamber Cat-Back System, Transgo Shift Kit, Performance Resource Chip, Accel Ignition, K&N Filters, Jet TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET: 14.32 @ 97.7mph
(corrected for elevation)

 

just curious, which of those mods gave u the best performance upgrade? and yes, i would definatley get some new runners, and just port them when u have the time

------------------
88' GTA 350 MODS---> air foil, K&N, Shift Kit, 180* therm, TB bypass

 

Yep, time to get the runners. I am running SLP semi's with my Edelbrock Hi-Flow. Car breathes nicely.


------------------
Rob P
89RSconvtZZ4TPI Edelbrock Intake
SLP Dual Cold Air Intake 1 5/8" Headers Semi-Siamesed Runners, IROC
suspension, alum shaft. Numerous mods.
92Z28convt5spd (stock)
71Impala convt 402BB
BETTER DRIVING THRU SUPERIOR HORSEPOWER!

 

Screw the runners...I ran a 12.98 with my stock runners. I only replaced them with the AS&M runners cuz my stock ones were badly dented...
They did help it breathe alot better up top, though.

Bottom line...

Get a Vigilante torque converter...you'll wish it was the first mod you ever did.
Trust me!

The TPI thrives on bottom end.
And that little ugly pink thing just multiplies it beyond belief!

It'll turn your tame little mouse into the torque monster it wants to be

Torq

 

Thanks for the help, guys. I think my 700R4 Transmission is dying, and I will be replaceing it soon (hopefully with a 6 speed), if not a strong 700 with a good stall, so I don't need one now, with my new rear end comming next summer!

------------------
1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End with 2.77:1 Gears.

Current Mods: LT4 HOT Cam, Comp Cams 1.52:1 Roller Rocker Arms, Accel High Flow TPI Baseplate, Edelbrock TES 1 5/8" Headers, Catco 3" High-Flow Catalytic Converter, Hooker 3" Aerochamber Cat-Back System, Transgo Shift Kit, Performance Resource Chip, Accel Ignition, K&N Filters, Jet TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET: 14.32 @ 97.7mph
(corrected for elevation)

 

By the way, the headers probably did the most so far. The new cam acctually slowed the car down a little with the stock intake and heads, but I'm sure in the long run it will be the best mod.

------------------
1987 Chevy Camaro IROC-Z
L98 TPI 350 (5.7L)
TH 700R-4 Transmission
Borg Warner 7.75" 9 Bolt Rear End with 2.77:1 Gears.

Current Mods: LT4 HOT Cam, Comp Cams 1.52:1 Roller Rocker Arms, Accel High Flow TPI Baseplate, Edelbrock TES 1 5/8" Headers, Catco 3" High-Flow Catalytic Converter, Hooker 3" Aerochamber Cat-Back System, Transgo Shift Kit, Performance Resource Chip, Accel Ignition, K&N Filters, Jet TPI Air Foil, All Free Mods, Falken ZIEX Z-Rated Tires.

Best ET: 14.32 @ 97.7mph
(corrected for elevation)