okay what would be the best suspension upgrade for my 89 firebird formula with the lil 305tbi i really need something tht really help my 1/4 times cuz when i go to the track and drag for the first time i dont want to be up set im trying to get in to the high 15's when i get there.

 

well lower control arms would be a good start.

good tires and a nice posi would help alot also.

 

LCA relocating brackets are the single biggest bang-for-the-buck mod I know of for 60' times. If your car has wheel hop (i.e. if it's one of these cars) then it needs them. The Spohn ones are a good deal.

LCAs themselves are next on the list; then springs & shocks; then an aftermarket torque arm. For LCAs I'd recommend Lakewood.

 

I haven't done a thing to my suspension apart from the Spohn torque arm and ran a best of 15.21 with the 305. Worst of the day was a 15.80. Rolling into the throttle instead of just flat footing it helped out a ton to get the times down. The very next run after the 15.80 I did a 15.25 then the 15.21 all on 215/65/15 regular tires.

 

Well thats great, evil. You didn't actually answer his question tho did you?

I would get a set of boxed lower control arms and lower control arm reloacator brackets. Those will help you a ton. Not expensive either. They'll prevent wheel hop and allow you to launch with more torque to the ground.

 

Well I boxed my lower control arms completely being careful to not warp them installed poly bushings added a poly torque arm bushing and am posting 1.8 60 foot times in the quarter and running 13.4 at 100mph . I still spin the tires but also have 430 hp and 430 ft/lbs of torque. Oh yea that is with running stock eagle Goodyear street tires aired down to 20.5 lbs. Plan on running in the 12's then putting on slicks for some real fun.

 

Just trying to point out you don't have to really do suspension work to get to the times he wants :lala: