High I am rebuilding a 305 for a 88 camaro z28 a tbi system was on it and I would like to use the same system however the dalima comes in I dont know witch heads I should use i have the 187 head that came off of the original motor and a pair of 614 that I can get for $170 both has to be rebuild but I was told the 187 heads are crap witch way to go