Here's the deal...looking to be solidly in the 10.80 range with a pump gas 383. Vehicle weighs 3400, has about 11:1 compression, a solid roller in the mid 250's and .620ish lift, 28" tires, 4.11 gears but they will be swapped for 4.56, a TH350, and an 8" 4500 stall converter. My question is, are Brodix M2 fully CNC'd 227cc Track 1 heads too large for this combination? If they're too big, tell me what you think wouldn't be, as well as what manifold to go with. It is driven on the street and raced, and I'm really not looking to spin it up past 7000. A small shot of nitrous isn't out of the question either, but isn't set in stone yet. Thanks.