Pivoting from 340 to 360

crackedback said

Don't waste the money on 69 exh manifolds. They don't do much over the stock 340-360 exhaust.

If you have them already, go with it.

Click to expand...

Already have the exhaust manifolds (see in the pic; they are on the 340 now) and the cam and lifters. Good thoughts on the springs. Thanks.