Is this too restrictive?

[hauserdaddy]

I have a 280 with a 300HP 350 installed. The previous owner had dual 1 7/8 inch pipes off of the headers and he never finished the exhaust. The pipes are ran up to the floor pans and cutoff. Is that going to be too restrictive? I was thinking I could move up to 2 inch or better duals back into a 2 to 1 Dynomax super turbo in the standard muffler spot on it or go true dual back to two side by side smaller mufflers. So the opinions I would like are

 

is 1 7/8 too restrictive on a 300HP 300 lb torque 350?

 

Will I lose any power going duals int a 2 into 1 muffler?

 

Is it worth running duals all the way back into a 2in 1 out muffler or is 2 into a y pipe into a regular 1 in 1 out muffler the same?

 

Are there any mufflers that would fit side by side in the regular muffler location?

 

Thanks for the help guys! I have been searching the boards for a while and I see a lot of 2 into Y pipe cars and side pipe cars. Not a ton of true duals specific info.

[johnc]

A 300hp 350 doesn't need a super trick exhaust. Your 1 7/8" pipes are fine as long as they run back to a nice merge or "Y" pipe and then a 3" single exhaust to the muffler and out the back.