With stock internals, injectors, and fuel pump I'd suggest a wet kit. No sense in stressting your stock fuel system with a big dry shot.
That said, 125 is safe and can be ran many times on a stock 4.8, 5.3, and 6.0. Since the LQ9 pistons are coated and the rods are beefier, a 150 shot can be used all day on the LQ9.
You should atleast change your plugs to TR6s though.
2004 Silverado SS
hey juiced i think i see you on trailblazerss.com dont i? i dont post there much but i read lot there.
2008 Trailblazer SS LS2, K&N CAI, flowmaster 40 series, hp tuned
2004 Trailblazer 4.2, K&N CAI, hp tuned
2002 Camaro Z28 5.7 ls1, lid, slp loudmouth, bbk longtube headers, ory, hp tuned, tr224 cam, ported 243 heads, moser 12 bolt w/ 3.73's and full spool, and a 100 shot just in case. 463whp, 458 wtq 11.32@ 120 1.52 60' on motor no spray times yet
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