RE: Sig 4*40 First time builder... BUILD THREAD!
Hi Chevypower,
I would like to confirm a question regarding the center photo you posted with the Engine mounts on the F1 assembly....for the engine mounts, is it the top mounting surface of the mounts that you line up with the thrust line?
I just posted this question and just want to be 100% correct prior to poking holes in the F1 assembly.
Thanks,
dave