[solly]

Straight from Dennis Olthoff: "grind rear sway bar to 7/8". Peter Brock told me to go as low as 3/4". Don't know why they made them so big in the first place.

Just found out today about lowering the engine and tranny in this email from Dennis. I have not yet experienced any diveshaft vibration:

Peter and others

The drive shaft needs to have some offset. All the cars we have done have no problem with vibration be it 5 or 6 speed.
The secret is lowering the motor 3/8" and the tranny 1". The side offset ends up being fine. If it was pefectly straight the u-joints would wear out in less than 200 miles.

We have redone 5 coupes already. All had a driveshaft vibration that was cured with our mod. The factory has now changed this as well.
Some customers never noticed the vibration. It is only felt under hard accel.

Cheers
Dennis.

Thanks for the input. My current induction setup is the pretty standard Performer RPM manifold, victor Jr. heads and a holley 770 cfm Street Avenger. Even with a 1.5 inch dropdown base the tallest filter I can get in is about 2.5 inches.