Don’t you have my old H set-up with the HASport mounts? In my old coupe the pasenger side CV boot was always getting mangled and throwing grease due to the odd angle the mounts held the motor.
From what I recall it is around 60 lbs difference, but the H leans forward (as opposed to rearward in the B series) so that 60 lbs does make a big difference in handling which is a straight line should not a problem.
I also like the something different route which if why I did the H swap back when pretty much no one knew anything about them. The drawbacks I previously stated motivated me to go for something else pretty rare, a fully done all motor b-setup with all the proper accompanying goodies, ITB’s, crazy ass header, custom pistons, etc.