need/have to go 13.50's in 1/4

I am sure a lot of you have been in this spot! I have a trash talking Ford friend with a crappy '68 Cougar. It is running a lame 302 roller motor with some head work. Car is not set up at all suspension wise. In fact the rear spring bushings are worn out and the rear hops violently on launch. Anyways, to the point. He ran a low 14. He is claiming it will smoke my 'Cuda's ***. My car is running a 340 with X-heads. Engine is bored .040 over. I have a Crane 509" cam and Hooker Performance headers. Edelbrock intake and Holley 600 carb.Flowmasters on 2 1/2" exhaust dumped at rear. Trans is an A833 4-speed a-body 18 spline. Rear is 8 3/4 741 case with 3:91 gears. Have Suregrip but it is not installed. Fiberglass hood with Hemi scoop. Fiberglass bumpers. Gutted doors with lexan. I saved the original doors to this factory 'Cuda. So purist don't worry! I also failed to mention that I have a brand new pair of Super Stock springs waiting in my garage along with an adjustable pinion snubber.
I have to beat this trash talking Ford head! he hates Mopars. Can I do it with what I got? Oh yea... he has slicks and I have old school Firestone bias plies on 7" Torque Thrust.