ill say that the finest part in my little pick em up is the lunatti cam its not too choppy and makes d@$^ good power

I'd have to say the upgraded ECU, 1 piece aluminum drive shaft, aluminum flywheel or the SAFC. All are mods that made a HUGE difference.

Depended on the vehicle. Some were tires, some suspension, one supercharger and one was an air freshener cause no matter what you did that miserable piece of ...

so far I'd have to say the cam, and my long tube headers... 

i almost bought a stinky car once and probably should have....1960 corvette convertible absolutely beautiful...test drove it to a local gas station where the attendat said he knew of the car a guy had a heart attack at a stop sign...he then rolled into a cornfeild where he sat for 2 weeks. i about killed the guy trying to sell it to me although he only wanted 12k for and 40k+ car at that time

M-45 GM supercharger with 2.6 pulley.

Probably the best bang-for-buck on my car would be injectors, and a supercharger pulley. About $300 and a retune gives you about 80+ HP, and drops about 1 second in the quarter.

(Supercharger pulley is in the mail as we speak! )

i think the best bang for the buck part i've ever spent money on was the two programmers i bought. really woke up those two trucks

Throw them on a dyno, and get them tuned for real, and you'll see even bigger improvements...

Yeah Actually, my co driver is a tuner, www.proxsestuning.com, and we have a dyno shop here in Beavercreek/Fairborn, Precision Autosports...  

They are right off rt. 35... right past Langs Chevrolet...

no kidding?!? i've been bast that place probably a hundred times. how would i go about getting the tuning done? talk to you on here or just check out the site? what would we be talking money wise?

you got a private message.

Mine was probably an extended warranty! haha