WE"RE BACK IN BUSINESS!!!!
A meger $194 later this puppy runs fantastic. 1.5 shop hours included a timing adjustment, and replacing a tempermental/failing kill switch. I kick myself for not trying to replace that last one on my own, but now I know the timing was done right. The timing was off just enough to miss a cylinder once it was put in gear. I trusted some reco's from some Mustang forums about adding GT40p heads to a 351 and must have retarded the timing too far. From best I can tell the distributor is in the position it was before I swapped heads.
The mechanic was so sure it was fixed he didn't lake test it. To be sure all was well, we took it up to O'Shaughnessy for a couple of hours on Saturday. We're going out tonight to take the kids tubing on Buckeye.
The boat is certainly quicker out of the hole and a has a higher top end up to 4400 rpms with these new heads. I'll take the GPS to check real top speed.
Thanks for all of the insight and ideas shared.
Last edited by Ryan; 08-25-2008 at 09:54 AM.