Well, I had previously planned on boosting the low compression 350 in the skylark, but after crunching the numbers( hp,ft/lbs, $$$) It makes more sense to swap in the 455(factory rated 365 hp, 510 ft/lbs) out of my GS car. Motor runs well, but im going to check the compression either tonight or tomorrow. If everything checks out, I'll go ahead and get the 455 on the engine stand and detail it out to get it ready for the skylark.