360 into early A, best ex manifolds

I have Hooker Super Comp fenderwall headers for the early A-body on my 66 with a 340 and I love them. I have a 4-speed and it wasn’t an issue, I run narrow tires up front and used to daily drive it quite a bit, even in the rain. They fit great and do not hang low at all, haven’t had any problems with them since I put them on 15 years ago, not even leaks. I had the one small pipe section rattling a bit so tack welded it so it would stop. Doing another 66 4-speed but this one will get manifolds since it’s gonna be a mild 318.