So you still don't think the ole 8hp V-twin Briggs with the "zoot bang" custom 42:1 counter rotator won't spin the dual 80" 4 blade superwides...all this time and you thought it was a 6.5hp. Just for you I will disconnect 1 plug wire so it only runs on 1 cylinder and I will leave the 88 octane 10% Ethanol quik shop gas in it! Just help me start it, pulling that little string hurts more than you think even when both cylinders are firing and the compression release is working.