got it all good and straight it wasnt to bad to get it thanks for the tips! one other thing is i was fixing to mount the engine and i think the manual says to get the back plate of the spinner to mesure 5 7/8 from the firewall unless i change the mount to get a thiner one or some thing as far back as i can get it is 6 3/8 ya thats 1/2 an inch and the battery im planing on useing weighs 7 1/2 oz and im mounting a magnum 120 four stroke do you think with out moving it back i will ever be able to get the cg where i want it with out the use of much lead