I'll be installing a 480hp 383 in my Elky soon. Already have headers, beefed-up 700 tranny, mild converter and 12 bolt posi,(3:42 w/ Moser axles). I need to up size the exhaust to 2.5. I'll probably use FlowMaster Delta Flow 40 mufflers. Any suggestions ... on where to find the best price on mandrel bent pipes/systems?

2.5 inch with H-PIPE and turn downs on the end of the muffler...pulls hard with a nice sound...take a look at the magnaflows before you buy the flowmaster..

summit has a good price on the 2.5" flowmaster system and it fits real nice.

you can get it with or without mufflers.