002-003 are for 3000# cars which would be underrated for a heavier car like yours. I have a set of 865-866 for E-bodies which are for 3400# cars so those would maybe the least you would want to put on. Gus has the setup like you are looking for. Good Luck!
I have 002/003's on for well over 10 years. Absolutely no issues.
I run 1 3/4" lowering blocks for obvious reasons. Car weight with me in it is over 3900#. Street/strip car with Rancho's on back and OE torsion bars up front with CE 90/10's. NO SNUBBER.