power

[Ls1m6Nichols]

i have headers y pipes slp lid 4.11 gears 5.0 shifter
what other bolts would i have to get to put down 350 to the wheels

[jakez28]

Gonna have to go internal maybe a mild cam depending on what your spendin

[konigandy6]

i have headers y pipes slp lid 4.11 gears 5.0 shifter
what other bolts would i have to get to put down 350 to the wheels

What are you making now? The gears and shifter obviously won't help #'s. But if you have long tube headers, a nice catback, lid and get it tuned, you just may crack that 350rwhp mark as it stands.

[TmaxicanA]

the right dyno will give you your 350 HP lol

according to a buddy of mine his stock auto makes 351 too the ground on the dyno...so i guess just keep getting dyno tunes untill you hit the mark!

ive heard people say UD pully is good for 10 HP on the dyno

[Ls1m6Nichols]

im not going internal for a little while but i do want to get a cold air induction, kit p&P tb, ls6 intake, and a slp pulley, and get a mail order tune by frost hopefully pretty some

[Tyler_LS1]

a tune will help, and once you get the LS6 intake you should be able to hit the 350 mark

[sunsetorangess]

im not going internal for a little while but i do want to get a cold air induction, kit p&P tb, ls6 intake, and a slp pulley, and get a mail order tune by frost hopefully pretty some

Stay away from K&N, you already have a lid so thats fine, dont P & P the TB or MAF, get a ls6 Intake and pulley's and im sure frost can get ya at the 350 mark.
J

[Firebirdjones]

Everyone nowadays seems to be so concerned about dyno numbers. Don't be.
Dynos and their tuners vary so much from shop to shop that it's not really a "set in stone" performance indicator.

Just do what you can afford, and stick with the same dyno as a tuning tool to measure gains accurately.

Sounds like you have the headers and Y-pipe with a lid taken care of. As others mentioned, I'd look into a catback system of your choice, an LS6 intake is an easy upgrade that yields a small gain, and a tune. A mail order tune from Frost would work great.
From there you'll have to start nit picking if you don't want to get inside the engine. Porting the throttle body is relatively cheap but may not show much on a stockish engine that isn't starving for air.
An underdrive pulley might give you a small gain, (didn't do anything for mine however). The free mods are always popular such as the fresh air under the lid, removing the hot coolant from the throttle body. If you plan to run the EGR intake for a while, remove and cut off the tube that protrudes into the intake throat disrupting air flow is another no cost mod for 97-00 LS1's.
Keep everything in a good state of tune to get the most out of what you have.