2000 7.3 back fire

[Michael H.]

alrighty guys i finally got the stage 2 injectors in and the TS tuner. in the stock tune it back fires when you rev it up. but when you put it in the big tunes its fine. could it be all the rigging that tard did that last had my truck or could it be that i need to up grade my valve springs and push rods?

thanks for any info,

mike

[bruce51d]

no, you need to upgrade your turbo and hpop if you want to make any power though. who's tunin?

[Michael H.]

tony wildman tunes. its makin power deffinatly. gotta wait on bigger turbo for the better trans or i will destroy the trans.