Big horsepower 318 builds
Speaking of which, I do have a roller cam 318 block in the garage and some Speedmasters in the basement. LOL
That roller 318 short block you have should have the flat top pistons without valve reliefs, sitting .040 down in the hole 9.2:1 cr stock.
Then add the Edelbrock 318 Big Valve aluminum heads, RPM Performer intake, performance hydraulic roller cam.
That would be a nice build right there with good street driving manners. Liking those Edelbrock Aluminum Heads a lot.
Acquiring the reman 302 Closed Chamber heads were coming in at right around 500 dollars ready to go (no longer a available), so another 300 bucks you can get the big valve aluminum heads, with probably the larger port runners and ports, that will accept the RPM Performer intakes . . bolt right on. Can use the stock mopar valve train that came with your roller engine if your roller cam lift is not too high.
Would like to see this one get built right here . . . 350 horse power.
Those are some Big Valves squeezed in there.