Head and cam selection help for 440

TF240's flow >
.100" 72 58
.200" 154 130
.300" 230 186
.400" 282 222
.500" 310 243
.600" 326 253
.700" 334 262
Tests conducted at 28" of water (pressure).
Bore size: 4.350"; exhaust with 2" pipe.
Your 9.5:1 with 78cc TF heads will as said increase your CR to around 10.5:1 perhaps a bit less, TF made 620hp with their .600" hyd.roller with mid 240'[email protected] duration [email protected]:1cr with their track heat intake and a 950 carb. For 550hp you could use an sft cam with .550" + and [email protected] as prh said (gives you 318cfm flow) and perhaps a smaller 850 carb even and reach your goal +... comp pro magnum r/rockers are cheaper and may work rather than HS or the Mancini HS made rockers but the rockers for those heads are slightly different, perhaps a call B3 racing will confirm. But all this isn't cheap....what true 550hp p/gas 440 is cheap, my 9.5:1 440sp with 2355 pistons+approx 260cfm@600" 906 heads and an 850DP was cheap but needed a .650" sft cam to get to around 530hp but it was race only with that cam.