Exhaust for 78 King Cobra w 351W

way2fast78

New Member
Apr 2, 2005
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Ok, after many hours and tweaking, the 351W is in and running and holy crap this things got way too much power. :banana: I installed hedman headers with a few modifications to make them fit.

I had a muffler shop install Flowmaster 40 series mufflers and man are they low. They run about 2" off the ground and yes sometimes they scrape. I decided to have them run the exhaust out in front of the rear tires on each side and it looks and sounds really good but the mufflers are too low.

I am considering raising the car with longer shackles in the rear and better spings in the front?

Any ideas or suggestions would be greatly appreciated.
 
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At this point, raising the car is probably the cheapest thing to do...but its not my personal choice.

Assuming that the muffler shop did a good job of installation, you are probably limited to using thinner mufflers under the car, using "tube-type" mufflers along the transmission tunnel, or using a "2 in-2 out" muffler in the stock location.

Raising the car will be OK for drag racing, but will spoil your handling for anything curvy.
 
way2fast78,

I ran my duals in front of the rear tires using a set of mufflers from Dynomax, they have the in/out on the same end and come with mount brackets welded on. I also used Edelbrock stainles steel tips and 2 1/2 " pipes the fit is good with no scrapes. Sorry I can't post picks, but if you look at a Dynomax catalog in the universal muffler section you'll find them. they sold for about 50 bucks a piece and sound better than my old 2-chamber flowmasters.