like it? its a blinder! lol

it goes straight in, use the cen clutch and flywheel, cen standard mounts, u may need to shim the pinions a bit - i did, cen manifold fits, but makes carb adjustment a bit tricky, rotate the carb so it just fits the manifold. i have the slide carb so that didnt cause a prob with the linkage being at an angle, the rotary may need some sort of slightly different linkage when rotated to fit...

it blows diff cups quite merrily, but the diff cup mod is the thing to search for to cure that. using mine on grass with spiked tyres results in twisted and snapped drveshafts, well, on any high grip surface with my style of driving... do the diff cup mod while its on the shelf mate, and see how that goes. get ur gear mesh spot on too - check the mesh at 90 degree intervals on the spur as they are not perfectly circular, and find the best comprimise.

have fun!