I was wonder what to expect because in a week or two at the most I will be dynoing my 03' Silverado 4.8 w/intake and MAF. Just wondering what to expect. When I get it done I will post (look for a week or two). Thanks.

 

parish has some G-Tech numbers up in a different post, he may be able to give you some info

 

I'll take a guess. With your mods ~235-240rwhp/245-250rwtq.

 

the gtech kind of sucks for hp numpers, especialy peak numbers, it wont let you pick the rpm range for the test and always cuts off eairly. my hp is showing something like 190 but it is still climbing fast. you also need an acurate weight for it to be correct and i just guessed.