This is a two part question. I think these are 318 exhaust manifolds off a 78 volare? Are there supposed to be heat shields?? Next, can I do away with the butterfly valve??
Thanks
Looks like a set of 64-66 A body manifolds by the numbers. I take out the butterfly, shaft and all, and tap the manifold for bolts. It will warm up slower but it can never stick shut. Maybe a bit more flow. Pre smog, no shields.
