Budget alum head???, check for some 'gently' used name-brand heads, in decent shape, dont get chineese crap. With a stock rotating assembly, i wouldnt turn it faster than 5k or so (cast pistons, crank, etc.)
781 or 049 heads, with good springs and valves
good roller rockers, or steel roller tipped rockers
280ah or similar cam .547"/.547", 232*/237* (I'll never use a flat-tappet cam again, I went roller and never looked back)
292ah may be too much for logs and snails
or...
Aluminum heads w/big valves
Roller cam, rockers
forged rotating ass'y (go to 489 or 496 cu.in. while your at it)
9.5-10:1 compression
TT headers
Its ALL cubic dollar$
Daniel