motor/trans mounts -solid or poly? headers?

[1966chevy]

I have a 67 camaro in the restoration process with DSE front/rear, solid body mounts, DSE subframe connectors, 540 (700+hp) with Rockland Standard tranzilla. What should I do for motor/trans mounts? I see alot of people running solid, but isn't there alot of vibration?
Also, anyone using a stock brand header with this setup, or should I be looking at Lemon's headers or equivalent?
Thank you, Rich

[Doug G]

Use a solid on the drivers side and a stock one on the other.
Reason is the torque load is on the drivers side when you get on the gas and the stock rubber one absorbs the vibrations.

[1966chevy]

Thank you. That makes sense.
Rich

[justanova]

Use a solid on the drivers side and a stock one on the other.
Reason is the torque load is on the drivers side when you get on the gas and the stock rubber one absorbs the vibrations.

we did that in my dads 70 caprice with a mild big block due to the factory mount pulling apart, we were initially worried about too much vibration etc... but it surprisingly didn't seem to make any noticiable difference. on another note it did also seem to tilt the motor slightly to the drivers side,I think the mount is slightly shorter. we used a moroso solid mount but i dont have a part# handy.