i also think exhaust is needed. here is some cheap LTs, throw a good flowing muffler on there and im sure you can find some bigger injectors that someone needs to get rid of on here. i bet you could do all of that for $500-$600

http://cgi.ebay.com/ebaymotors/CHEVR...item2305729dc2

impressive numbers none the less all things considered

 

are you locking the converter in 3rd? that **** moves man. that's the same mph i have, but not the E/T id give you hell on the street but you'd murder me on the track

 

He'd beat you on the street too since he is 4wd, unless youre talking from a roll then it would be a close race. Very close mph.

 

No, I did that once and smoked my 3-4 clutch pack and my Yank converter clutch. It was also slower when locked in 3rd.

 

yeah on the roll he'd be in trouble lol. my truck doesnt run very well on DRs (mph wise) but on street tires it runs just like its suppose to. ive ran cars that trap 108-109 and have beaten them or hung with them almost even. id love to get back to the track and see what my new converter will do.

12.3 @ 104 is just quick as hell. i would like to see you do free flowing exhaust with stock manifolds/Y and see what it picks up. then back after the LT/OR-y swap to see how it changes. i think it could go 11.99s with better exhaust, and colder weather