Do domed KYB 399’s interfere with 302 cast heads?

i've built many 400hp 318's

i don't see how you make that number with the cam specs you're touting, a dual plane and 750 cfm.

what are heads flowing?

also, i'm calling straight BS on your 1500 budget. unless you're pulling together used parts, which is fine. but don't front about about.