I understand the budget but wonder why you say it will have aluminum heads? Good cast iron heads are available that may save you $ in the long run depending on future plans for motor
Well, I figured it would be worth the weight savings, and will tolerate more compression, and I just know I would progress to them eventually so no use in rebuilding the iron heads. I think I am leaning towards the 408...just need to cart the block to the machinist and start already! The 390 still sounds interesting though! Thanks guys for the replies