hood insulation/ and pyros

[balistic]

so anyone got any thoughts or conclusions on wether removing the insulation under the hood would benefit lower under hood temps, or not.Next pyros, they need to be mounted in the manifolds for best most accurate monitoring, so wouldn't one in each be the best idea??? Lastly, on intake tubes, say a guy is making a home made intake tube (like the 6637 setup)smaller, say 3.5" for velocity or 4" for volume...........any discussions??

[BIGBILL105 45]

The hood insulation is just a sound insulator.

[NCHornet]

The insulation won't do a thing but make your engine louder. Having a pyro in each manifold is a waste of time and it takes up valuable gauge space. There is little difference between the two sides, been proven by many, just make sure it goes pre-turbo. Changing the size of the short intake will have little to no effect, I would keep it the same as it is now, it will make your plumbing much easier.

NCH