1. im almost positive i have a leak between my engine and exhaust

ive read some people use high temp gasket seal between the gasket on both sides.

other post i see no gasket seal and just tighten again after heating and letting cool.

2. Is there much difference between gaskets. Ive seen solid alum
and also seen something like layers alum is kind of flexible?

what do you guys prefer on the mopar 440's

3. Im not sure it matters but my muffler tail pipe is just behind my cab.

I m thinking of running to the back bumper because its so loud.

is there less back pressure running the exhaust long?

any recommendations on exhaust with low back pressure?

thanks again for all the great advice -slowly but surely she coming along

 

Try using Remflex gaskets. They work really well. Just Google the name 'Remflex'.