M1 Sb intake. Best for small blocks?

The 302 heads I have were gasket matched and ported. I guess my question is, if the edelbrock air gap/M1 dual plane have runners sized to fit the 340/360 heads, what will it do with the 302 heads? Just not perform as well I guess?

Matched to what gasket? A 318 or 340/360?

yes you could go back and grind them to match a 340/360 gasket.

but spending $400 for a dual plane M1 seems a little silly in this situation.

there was a small port Edelbrock LD4B intake. Look for that used.

read here: Edelbrock LD4B