To any of the regular posters to this topic,i have some stellar stuff(some can be posted-others are way over the line),but I don't have the time or inclination to post them.E-mail me off line and I'll send them your way.
An old XGF had a 89 560SEC.Drove it from LA to Lost Wages.My God what a car.130,000 miles and you still could see the cross hatch in the cylinder walls.
I'm one of them. ANd it's not a good idea. A good set of SU's are superior in every measurable way.
To the OP,when that pretty yellow Accel HEI module dies on you, go to the boneyard and find a GM with a HEI in it. THe factory module beats all aftermarket ones hands down.
Alignment shop with have that info.Or the FSM will have it also.If memory serves,it will be a measurement in inches from a point on th evehicle to the ground.