I have an old blue head spec 1 XZ-B with a spec 1 speed case (switched speed crank into my spec 1 blue head engine so this engine s basically a speed with a regular rather new stock crank and a blue head. Black speed case) I was quite impressed how good it ran last time I used it but it was absurdly gone on compression. Forget (It) checking compression by tilting the engine on its side with the flywheel u would think theres no glowplug in. Would be totally perfect for you. 50$ shipped