My 99 S-10 has the 4.3 V6 and is a automatic, it has a bunch of power after it hits about 25mph but off the line i cant even churp it acts like it has a dad that would ground it or somethin please help if u know anythin thanks!

tune up?

Try the basics. Shift improver kit from B&M, Art Carr, or Hughes. You should have the 4L60-E in yours. You could also try lower gears. Try not to go above 3.73's. A good Cold Air Intake, Cat back exhaust, and programmer will give you a real kick in the squirrels too. SLP makes bolt on 1.6 ratio roller rockers for more valve lift. Try www.slponline.com for S-10 related parts.