i am going to be buying a set of hooker supercomp jet coasted headers but first i want to make sure that these will work

will i have enough ground clearence??

also i have a flowmaster american thunder 3" dual exhaust system and i was wondering how i might go about hooking it up to my new long tube headers??

any pictures???

1991 RS
377ci
450hp/500ft lbs of torque
700r4 performance rebuild
eaton posi w/ 3.73s

 

Ground clearance shouldn't be a problem, the collectors ought to fall right about even, maybe slightly below, the bottom of the oilpan. As for connecting it to your current exhaust.....it depends on how the old exhaust is set up. Generally speaking, its hard to adapt an exhaust set up for manifolds or shorty headers to work with longtubes. The reason being that most guys using shorties run the crossover in the stock location, and with longtubes that's impossible.

 

the exhaust system i have on it only has one catalytic converter so it is "true duals"

 

If the cat is in the stock location then you'll have to find/fabricate a y-pipe that crosses below the transmission in order to keep it. That's gonna cost you a LOT of ground clearance. You could try going to a dual-cat setup and have the y behind the tranny, or if you don't have to worry about emissions (like me ) then you could just run duals all the way back. No matter how you go it's gonna mean redesigning most of your exhaust system.