Quote: Can you just bolt on aluminum heads to a stock motor, dont you lose a point in compression or do they come milled so they already take that into consideration?
Yes, the 84 cc heads probably have a smaller chamber than your current heads so will raise compression.
Take care, Rick 68 Coronet R/T 440 & 68 Charger 528 Hemi,and 5 Challengers! 6 cyl, 318, 360, 383, 451
