Re: 1951 Scott Attwater 1-30 16hp Home › Forum › Ask A Member › 1951 Scott Attwater 1-30 16hp › Re: 1951 Scott Attwater 1-30 16hp thumperReplies: 208Topics: 25 March 24, 2018 at 3:11 am #72940 the powerhead has 110 psi in both cylinders but coils are shot, might be a runner yet!