how much rwhp does a lightning need?
 

where would a lightning have to be for rwhp to hang with a 450rwhp A4 Z28 with 3600 stall? i know it pretty much stock maybe a bigger pulley but that all im sure.

If I remember right those are around 3900 lbs? assuming your F body weighs around 3400 I would guess around 500 HP to be equal. But thats really hard to say, are you talking about a set roll or at a track? Theres so much besides just RWHP when it comes to drag racing that we would really need more details about the cars

will be on the street but im sure he will want to go from a dig im pretty sure they are about 4600Lbs and mine...3600 prolly does have 200lbs on it from stereo body-kit ect. so i should have at least 1 sec off him hp for hp right?

My buddys is 45 to 4600 lbs, with bassani exhuast and intake and blower and crank pulley it make 400 rwhp and 5xx something torque and ran 13.00 with a slick in the rear but still a shitty 60ft, so if that tells you anything glad I could help lol. otherwise dont know to much about them. With your mods I wouldnt worry about loseing

just make your truck like 700-800 rwhp throw on some drag radials and make him look stupid. go big or go home.

lol well actually i have the car but thanks for supporting my blue oval friends haha

at least 550rwhp.