ok guys. my old 289 needs a little help. it does get up and go pretty good, but i need more. im not sure of the build but i know about the bolt ons. i put on tri-y headers, flamethrower electronic ignition, its got a holley 4 barrel- not sure of the cfm, i think it has some sort of cam because it idles a little on the radical side. definately not the stock intake manifold. 2 1/2 inch exhaust through flowmaster 40's. im not sure if it has been bored over at all but the heads do look pretty fresh. i know im getting robbed by my rear end its the original 283, i hate it. c4 tranny. anyway i want a little more go and i was thinking about the paxton set up for the 289. it does burn a little black in the exhaust and sometimes idles rough and usually starts a little hard. what would i have to do to this motor to bolt up the paxton? am i gonna blow it up if i do? i dont even have a clue as to what my hp rating is right now. any advice is greatly appreciated. thanks guys!!!!

 

stock 8inch rear?

dont get a paxton S/C yet. get bigger gears and some sort of locker for that rear. you wont hate it then.

maybe even get a t-5 trany and do a tranny swap. theres more power for ya! if you cant get enough power like me, Theeeennnnn, get a S/C

 

so what would it cost me to convert to like 3.00 or 3.50 gears, also im a big do it myself-er. so i would tear it up on my own and rebuilt it.

 

yea it is the 8inch rear end

 

your going to need the gears and the locking differential. most people would say get new axles too, but if yours aint broke, dont fix them. i would take it to a shop to put them on. if you dont know wht your doing, then it may cost you alot later on


search http://www.summitracing.com for gears and a locker

 

hey thanks for the advice i really want to upgrade ill have to look around and pick the right stuff out. these 2.83 gears are killing me.

 

we need to have some kinda detroit truetrac locker group buy.[&:] i got 3.55's but havnt gotten them in yet. after my body and engine are done. im taking it up to my ocal shop so they can put in my stall converter and my gears and locker

 

Do not, and I repeat Do not tear into that rear end if you don't have experience.

 

yea from what i have heard it can be a real pain in the ***. usually i do everything with my dad and a detailed shop manual. if its too much of a pain ill just take it in and pay for it.

 

yea i could definatly get in on a group buy