It better to do a compression test when warm. You can have a problem with something not sealing correctly when its at operating temp compared to cold.
Why dont you invest in a non cooler filter adapter?
also, did you put a used radiator in? Have you tighten the line more?
96 BBB CAI spintech ss304 exhaust,Tri-ys, Hotchkis everywhere,3:73s with eaton, 1.6cc/ls2 springs, black imp rims,dennys d-shaft,
98 Lumina 9c3, beater sold!
06 Impala magnaflows k/n
96 9c1 gone, not forgotten
96 BBB sold