Or, you could keep the cam you already have, and go the LT1 intake conversion route. TPI intakes are good to about 4,500RPM, whereas an LT1 intake can go as high as 8,000 with proper porting.

Check out these links: http://popularhotrodding.com/tech/0803phr_beast/

AND

www.lt1intake.com

You can get used LT1 intakes dirt cheap off Ebay.

 

Abosolutely
1988 IROCZ specifically a street machine:
CompCams camshaft: Part # 12-238-2 Designation XE262H-10
Duration @ 0.006" 262 / 270 Duration @ 0.050" 218 / 224
Max Lift w/ 1.5RR 462 / .469 Lobe Separation 110
Lobe ID#'s 5442 / 5201 Intake Centerline 106
Engine Type: World Products Motown 350 non-roller small block
Bore 4.060" Stroke 3.750" Rods 6.000" forged aluminum pistons
Displacement: 388ci/6.4Liter Compression 10:1
Heads: GMPP Fastburn aluminum Vortec style heads - ported int/exh -polished only chambers, and exh ports, 1.5 Roller rocker arms
SDPC High-Flow TPI Vortec baseplate - external EGR Exhaust 1-3/4" SLP Headers - with A.I.R, and EGR kit, and 30# injectors
52mm (over-bored stock throttle body 104mm total - using 3.8L V6 mono-throttle blades,) I bored the TB with the air foil installed, and deleted the coolant system instead of bypassing it (don't need it in Texas)
180 Thermostat
I use both the plenum MAT, and the IAT with an air snorkel from a V6. I working on my own custom cold air system.
I ported the plenum to match the TB, but the runners are still stock (working on that.)
Chip in ECM removed (leaving the limp home section) and EPROM slot cabled to an EPROM emulator.
I used TunerCat RT to reprogram for the larger injectors, and the lower T-stat.
I'm not going to do any tuning until it's had a several hundred mile under it's belt. It idle well, and passed emmisions (just barely) which was the one thing I was worried about.

 

Is there a specific cam that people have had great luck with in there TPI engines or just choose one that I want?

 

Check here www.tpis.com They seem to know what they're doing with tuned ports.